diff --git a/core/debugger/engine_profiler.h b/core/debugger/engine_profiler.h
index f74481c84b0..d3d0021e677 100644
--- a/core/debugger/engine_profiler.h
+++ b/core/debugger/engine_profiler.h
@@ -31,10 +31,8 @@
 #ifndef ENGINE_PROFILER_H
 #define ENGINE_PROFILER_H
 
-#include "core/object/ref_counted.h"
-
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
+#include "core/object/ref_counted.h"
 
 class EngineProfiler : public RefCounted {
 	GDCLASS(EngineProfiler, RefCounted);
diff --git a/core/io/packet_peer.h b/core/io/packet_peer.h
index 7383ab84df0..86ebe32cb6f 100644
--- a/core/io/packet_peer.h
+++ b/core/io/packet_peer.h
@@ -37,7 +37,6 @@
 
 #include "core/extension/ext_wrappers.gen.inc"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class PacketPeer : public RefCounted {
diff --git a/core/io/resource_format_binary.cpp b/core/io/resource_format_binary.cpp
index 551d3268b8c..ea97e5ecce3 100644
--- a/core/io/resource_format_binary.cpp
+++ b/core/io/resource_format_binary.cpp
@@ -36,6 +36,7 @@
 #include "core/io/image.h"
 #include "core/io/marshalls.h"
 #include "core/io/missing_resource.h"
+#include "core/object/script_language.h"
 #include "core/version.h"
 
 //#define print_bl(m_what) print_line(m_what)
diff --git a/core/io/resource_loader.cpp b/core/io/resource_loader.cpp
index df0253349c1..c1a38f0af80 100644
--- a/core/io/resource_loader.cpp
+++ b/core/io/resource_loader.cpp
@@ -33,6 +33,7 @@
 #include "core/config/project_settings.h"
 #include "core/io/file_access.h"
 #include "core/io/resource_importer.h"
+#include "core/object/script_language.h"
 #include "core/os/condition_variable.h"
 #include "core/os/os.h"
 #include "core/string/print_string.h"
diff --git a/core/io/resource_loader.h b/core/io/resource_loader.h
index 2701caa3f47..0c7d6c0feb2 100644
--- a/core/io/resource_loader.h
+++ b/core/io/resource_loader.h
@@ -33,7 +33,6 @@
 
 #include "core/io/resource.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/object/worker_thread_pool.h"
 #include "core/os/semaphore.h"
 #include "core/os/thread.h"
diff --git a/core/io/resource_saver.h b/core/io/resource_saver.h
index 572742d1294..4828df297ae 100644
--- a/core/io/resource_saver.h
+++ b/core/io/resource_saver.h
@@ -33,7 +33,6 @@
 
 #include "core/io/resource.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 
 class ResourceFormatSaver : public RefCounted {
 	GDCLASS(ResourceFormatSaver, RefCounted);
diff --git a/core/io/stream_peer.h b/core/io/stream_peer.h
index ba11144e335..29cdb826151 100644
--- a/core/io/stream_peer.h
+++ b/core/io/stream_peer.h
@@ -35,7 +35,6 @@
 
 #include "core/extension/ext_wrappers.gen.inc"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class StreamPeer : public RefCounted {
diff --git a/core/math/a_star.h b/core/math/a_star.h
index fc4bb09f03d..0758500c8a0 100644
--- a/core/math/a_star.h
+++ b/core/math/a_star.h
@@ -33,7 +33,6 @@
 
 #include "core/object/gdvirtual.gen.inc"
 #include "core/object/ref_counted.h"
-#include "core/object/script_language.h"
 #include "core/templates/oa_hash_map.h"
 
 /**
diff --git a/core/math/a_star_grid_2d.h b/core/math/a_star_grid_2d.h
index dd5f9d0575b..ecc9bb01f93 100644
--- a/core/math/a_star_grid_2d.h
+++ b/core/math/a_star_grid_2d.h
@@ -33,7 +33,6 @@
 
 #include "core/object/gdvirtual.gen.inc"
 #include "core/object/ref_counted.h"
-#include "core/object/script_language.h"
 #include "core/templates/list.h"
 #include "core/templates/local_vector.h"
 
diff --git a/core/object/make_virtuals.py b/core/object/make_virtuals.py
index 5be9650b324..38682d6d928 100644
--- a/core/object/make_virtuals.py
+++ b/core/object/make_virtuals.py
@@ -160,6 +160,8 @@ def run(target, source, env):
 #ifndef GDVIRTUAL_GEN_H
 #define GDVIRTUAL_GEN_H
 
+#include "core/object/script_instance.h"
+
 
 """
 
diff --git a/core/object/script_instance.cpp b/core/object/script_instance.cpp
new file mode 100644
index 00000000000..303b127db16
--- /dev/null
+++ b/core/object/script_instance.cpp
@@ -0,0 +1,71 @@
+/**************************************************************************/
+/*  script_instance.cpp                                                   */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#include "script_instance.h"
+
+#include "core/object/script_language.h"
+
+Variant ScriptInstance::call_const(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
+	return callp(p_method, p_args, p_argcount, r_error);
+}
+
+void ScriptInstance::get_property_state(List<Pair<StringName, Variant>> &state) {
+	List<PropertyInfo> pinfo;
+	get_property_list(&pinfo);
+	for (const PropertyInfo &E : pinfo) {
+		if (E.usage & PROPERTY_USAGE_STORAGE) {
+			Pair<StringName, Variant> p;
+			p.first = E.name;
+			if (get(p.first, p.second)) {
+				state.push_back(p);
+			}
+		}
+	}
+}
+
+void ScriptInstance::property_set_fallback(const StringName &, const Variant &, bool *r_valid) {
+	if (r_valid) {
+		*r_valid = false;
+	}
+}
+
+Variant ScriptInstance::property_get_fallback(const StringName &, bool *r_valid) {
+	if (r_valid) {
+		*r_valid = false;
+	}
+	return Variant();
+}
+
+const Variant ScriptInstance::get_rpc_config() const {
+	return get_script()->get_rpc_config();
+}
+
+ScriptInstance::~ScriptInstance() {
+}
diff --git a/core/object/script_instance.h b/core/object/script_instance.h
new file mode 100644
index 00000000000..df978a25ea2
--- /dev/null
+++ b/core/object/script_instance.h
@@ -0,0 +1,98 @@
+/**************************************************************************/
+/*  script_instance.h                                                     */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#ifndef SCRIPT_INSTANCE_H
+#define SCRIPT_INSTANCE_H
+
+#include "core/object/ref_counted.h"
+
+class Script;
+class ScriptLanguage;
+
+class ScriptInstance {
+public:
+	virtual bool set(const StringName &p_name, const Variant &p_value) = 0;
+	virtual bool get(const StringName &p_name, Variant &r_ret) const = 0;
+	virtual void get_property_list(List<PropertyInfo> *p_properties) const = 0;
+	virtual Variant::Type get_property_type(const StringName &p_name, bool *r_is_valid = nullptr) const = 0;
+	virtual void validate_property(PropertyInfo &p_property) const = 0;
+
+	virtual bool property_can_revert(const StringName &p_name) const = 0;
+	virtual bool property_get_revert(const StringName &p_name, Variant &r_ret) const = 0;
+
+	virtual Object *get_owner() { return nullptr; }
+	virtual void get_property_state(List<Pair<StringName, Variant>> &state);
+
+	virtual void get_method_list(List<MethodInfo> *p_list) const = 0;
+	virtual bool has_method(const StringName &p_method) const = 0;
+
+	virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) = 0;
+
+	template <typename... VarArgs>
+	Variant call(const StringName &p_method, VarArgs... p_args) {
+		Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
+		const Variant *argptrs[sizeof...(p_args) + 1];
+		for (uint32_t i = 0; i < sizeof...(p_args); i++) {
+			argptrs[i] = &args[i];
+		}
+		Callable::CallError cerr;
+		return callp(p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args), cerr);
+	}
+
+	virtual Variant call_const(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error); // implement if language supports const functions
+	virtual void notification(int p_notification, bool p_reversed = false) = 0;
+	virtual String to_string(bool *r_valid) {
+		if (r_valid) {
+			*r_valid = false;
+		}
+		return String();
+	}
+
+	//this is used by script languages that keep a reference counter of their own
+	//you can make make Ref<> not die when it reaches zero, so deleting the reference
+	//depends entirely from the script
+
+	virtual void refcount_incremented() {}
+	virtual bool refcount_decremented() { return true; } //return true if it can die
+
+	virtual Ref<Script> get_script() const = 0;
+
+	virtual bool is_placeholder() const { return false; }
+
+	virtual void property_set_fallback(const StringName &p_name, const Variant &p_value, bool *r_valid);
+	virtual Variant property_get_fallback(const StringName &p_name, bool *r_valid);
+
+	virtual const Variant get_rpc_config() const;
+
+	virtual ScriptLanguage *get_language() = 0;
+	virtual ~ScriptInstance();
+};
+
+#endif // SCRIPT_INSTANCE_H
diff --git a/core/object/script_language.cpp b/core/object/script_language.cpp
index a8b0e426aea..e1d21c875c8 100644
--- a/core/object/script_language.cpp
+++ b/core/object/script_language.cpp
@@ -388,40 +388,6 @@ String ScriptServer::get_global_class_cache_file_path() {
 
 ////////////////////
 
-Variant ScriptInstance::call_const(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
-	return callp(p_method, p_args, p_argcount, r_error);
-}
-
-void ScriptInstance::get_property_state(List<Pair<StringName, Variant>> &state) {
-	List<PropertyInfo> pinfo;
-	get_property_list(&pinfo);
-	for (const PropertyInfo &E : pinfo) {
-		if (E.usage & PROPERTY_USAGE_STORAGE) {
-			Pair<StringName, Variant> p;
-			p.first = E.name;
-			if (get(p.first, p.second)) {
-				state.push_back(p);
-			}
-		}
-	}
-}
-
-void ScriptInstance::property_set_fallback(const StringName &, const Variant &, bool *r_valid) {
-	if (r_valid) {
-		*r_valid = false;
-	}
-}
-
-Variant ScriptInstance::property_get_fallback(const StringName &, bool *r_valid) {
-	if (r_valid) {
-		*r_valid = false;
-	}
-	return Variant();
-}
-
-ScriptInstance::~ScriptInstance() {
-}
-
 ScriptCodeCompletionCache *ScriptCodeCompletionCache::singleton = nullptr;
 ScriptCodeCompletionCache::ScriptCodeCompletionCache() {
 	singleton = this;
diff --git a/core/object/script_language.h b/core/object/script_language.h
index 3cac360b1a8..e0c4d650ddc 100644
--- a/core/object/script_language.h
+++ b/core/object/script_language.h
@@ -33,6 +33,7 @@
 
 #include "core/doc_data.h"
 #include "core/io/resource.h"
+#include "core/object/script_instance.h"
 #include "core/templates/pair.h"
 #include "core/templates/rb_map.h"
 #include "core/templates/safe_refcount.h"
@@ -101,7 +102,6 @@ public:
 	static bool are_languages_finished() { return languages_finished.is_set(); }
 };
 
-class ScriptInstance;
 class PlaceHolderScriptInstance;
 
 class Script : public Resource {
@@ -174,65 +174,6 @@ public:
 	Script() {}
 };
 
-class ScriptInstance {
-public:
-	virtual bool set(const StringName &p_name, const Variant &p_value) = 0;
-	virtual bool get(const StringName &p_name, Variant &r_ret) const = 0;
-	virtual void get_property_list(List<PropertyInfo> *p_properties) const = 0;
-	virtual Variant::Type get_property_type(const StringName &p_name, bool *r_is_valid = nullptr) const = 0;
-	virtual void validate_property(PropertyInfo &p_property) const = 0;
-
-	virtual bool property_can_revert(const StringName &p_name) const = 0;
-	virtual bool property_get_revert(const StringName &p_name, Variant &r_ret) const = 0;
-
-	virtual Object *get_owner() { return nullptr; }
-	virtual void get_property_state(List<Pair<StringName, Variant>> &state);
-
-	virtual void get_method_list(List<MethodInfo> *p_list) const = 0;
-	virtual bool has_method(const StringName &p_method) const = 0;
-
-	virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) = 0;
-
-	template <typename... VarArgs>
-	Variant call(const StringName &p_method, VarArgs... p_args) {
-		Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
-		const Variant *argptrs[sizeof...(p_args) + 1];
-		for (uint32_t i = 0; i < sizeof...(p_args); i++) {
-			argptrs[i] = &args[i];
-		}
-		Callable::CallError cerr;
-		return callp(p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args), cerr);
-	}
-
-	virtual Variant call_const(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error); // implement if language supports const functions
-	virtual void notification(int p_notification, bool p_reversed = false) = 0;
-	virtual String to_string(bool *r_valid) {
-		if (r_valid) {
-			*r_valid = false;
-		}
-		return String();
-	}
-
-	//this is used by script languages that keep a reference counter of their own
-	//you can make make Ref<> not die when it reaches zero, so deleting the reference
-	//depends entirely from the script
-
-	virtual void refcount_incremented() {}
-	virtual bool refcount_decremented() { return true; } //return true if it can die
-
-	virtual Ref<Script> get_script() const = 0;
-
-	virtual bool is_placeholder() const { return false; }
-
-	virtual void property_set_fallback(const StringName &p_name, const Variant &p_value, bool *r_valid);
-	virtual Variant property_get_fallback(const StringName &p_name, bool *r_valid);
-
-	virtual const Variant get_rpc_config() const { return get_script()->get_rpc_config(); }
-
-	virtual ScriptLanguage *get_language() = 0;
-	virtual ~ScriptInstance();
-};
-
 class ScriptCodeCompletionCache {
 	static ScriptCodeCompletionCache *singleton;
 
diff --git a/core/os/main_loop.h b/core/os/main_loop.h
index 90cad009b12..b45eb38aebf 100644
--- a/core/os/main_loop.h
+++ b/core/os/main_loop.h
@@ -34,7 +34,6 @@
 #include "core/input/input_event.h"
 #include "core/object/gdvirtual.gen.inc"
 #include "core/object/ref_counted.h"
-#include "core/object/script_language.h"
 
 class MainLoop : public Object {
 	GDCLASS(MainLoop, Object);
diff --git a/core/string/translation.h b/core/string/translation.h
index ca8b4603123..3f9dbcc4766 100644
--- a/core/string/translation.h
+++ b/core/string/translation.h
@@ -33,7 +33,6 @@
 
 #include "core/io/resource.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 
 class Translation : public Resource {
 	GDCLASS(Translation, Resource);
diff --git a/core/variant/variant_parser.cpp b/core/variant/variant_parser.cpp
index b7bdf1d97a6..fea16222224 100644
--- a/core/variant/variant_parser.cpp
+++ b/core/variant/variant_parser.cpp
@@ -32,6 +32,7 @@
 
 #include "core/input/input_event.h"
 #include "core/io/resource_loader.h"
+#include "core/object/script_language.h"
 #include "core/os/keyboard.h"
 #include "core/string/string_buffer.h"
 
diff --git a/editor/debugger/editor_debugger_node.h b/editor/debugger/editor_debugger_node.h
index e855fa6ee07..8ca709dd9b2 100644
--- a/editor/debugger/editor_debugger_node.h
+++ b/editor/debugger/editor_debugger_node.h
@@ -31,6 +31,7 @@
 #ifndef EDITOR_DEBUGGER_NODE_H
 #define EDITOR_DEBUGGER_NODE_H
 
+#include "core/object/script_language.h"
 #include "editor/debugger/editor_debugger_server.h"
 #include "scene/gui/margin_container.h"
 
diff --git a/editor/debugger/script_editor_debugger.h b/editor/debugger/script_editor_debugger.h
index 7e9a7672735..79224061ffd 100644
--- a/editor/debugger/script_editor_debugger.h
+++ b/editor/debugger/script_editor_debugger.h
@@ -31,6 +31,7 @@
 #ifndef SCRIPT_EDITOR_DEBUGGER_H
 #define SCRIPT_EDITOR_DEBUGGER_H
 
+#include "core/object/script_language.h"
 #include "core/os/os.h"
 #include "editor/debugger/editor_debugger_inspector.h"
 #include "editor/debugger/editor_debugger_node.h"
diff --git a/editor/editor_script.cpp b/editor/editor_script.cpp
index 4e8c5ad8b58..e675b9621ed 100644
--- a/editor/editor_script.cpp
+++ b/editor/editor_script.cpp
@@ -32,6 +32,7 @@
 
 #include "editor/editor_interface.h"
 #include "editor/editor_node.h"
+#include "scene/main/node.h"
 
 void EditorScript::add_root_node(Node *p_node) {
 	if (!EditorNode::get_singleton()) {
diff --git a/editor/editor_script.h b/editor/editor_script.h
index d7c813261d3..72e7641df74 100644
--- a/editor/editor_script.h
+++ b/editor/editor_script.h
@@ -33,10 +33,10 @@
 
 #include "core/object/gdvirtual.gen.inc"
 #include "core/object/ref_counted.h"
-#include "core/object/script_language.h"
 
 class EditorInterface;
 class EditorNode;
+class Node;
 
 class EditorScript : public RefCounted {
 	GDCLASS(EditorScript, RefCounted);
diff --git a/editor/editor_translation_parser.h b/editor/editor_translation_parser.h
index 2291bd8a70f..78dc726c52e 100644
--- a/editor/editor_translation_parser.h
+++ b/editor/editor_translation_parser.h
@@ -34,7 +34,6 @@
 #include "core/error/error_list.h"
 #include "core/object/gdvirtual.gen.inc"
 #include "core/object/ref_counted.h"
-#include "core/object/script_language.h"
 #include "core/variant/typed_array.h"
 
 class EditorTranslationParserPlugin : public RefCounted {
diff --git a/editor/editor_vcs_interface.h b/editor/editor_vcs_interface.h
index 814baeb37ca..84f2cf92818 100644
--- a/editor/editor_vcs_interface.h
+++ b/editor/editor_vcs_interface.h
@@ -33,9 +33,9 @@
 
 #include "core/object/class_db.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language_extension.h"
 #include "core/string/ustring.h"
 #include "core/variant/type_info.h"
+#include "core/variant/typed_array.h"
 
 class EditorVCSInterface : public Object {
 	GDCLASS(EditorVCSInterface, Object)
diff --git a/editor/gui/scene_tree_editor.cpp b/editor/gui/scene_tree_editor.cpp
index 321d7a35456..8e08528f195 100644
--- a/editor/gui/scene_tree_editor.cpp
+++ b/editor/gui/scene_tree_editor.cpp
@@ -32,6 +32,7 @@
 
 #include "core/config/project_settings.h"
 #include "core/object/message_queue.h"
+#include "core/object/script_language.h"
 #include "editor/editor_file_system.h"
 #include "editor/editor_node.h"
 #include "editor/editor_scale.h"
diff --git a/editor/import/resource_importer_scene.cpp b/editor/import/resource_importer_scene.cpp
index 2e422d8c270..c70918e55eb 100644
--- a/editor/import/resource_importer_scene.cpp
+++ b/editor/import/resource_importer_scene.cpp
@@ -32,6 +32,7 @@
 
 #include "core/error/error_macros.h"
 #include "core/io/resource_saver.h"
+#include "core/object/script_language.h"
 #include "editor/editor_node.h"
 #include "editor/editor_settings.h"
 #include "editor/import/scene_import_settings.h"
diff --git a/editor/plugin_config_dialog.cpp b/editor/plugin_config_dialog.cpp
index c5a667cd5fd..196a2186a72 100644
--- a/editor/plugin_config_dialog.cpp
+++ b/editor/plugin_config_dialog.cpp
@@ -32,6 +32,7 @@
 
 #include "core/io/config_file.h"
 #include "core/io/dir_access.h"
+#include "core/object/script_language.h"
 #include "editor/editor_node.h"
 #include "editor/editor_plugin.h"
 #include "editor/editor_scale.h"
diff --git a/editor/plugins/animation_blend_tree_editor_plugin.h b/editor/plugins/animation_blend_tree_editor_plugin.h
index afb3394238b..90fb42cd7ac 100644
--- a/editor/plugins/animation_blend_tree_editor_plugin.h
+++ b/editor/plugins/animation_blend_tree_editor_plugin.h
@@ -31,6 +31,7 @@
 #ifndef ANIMATION_BLEND_TREE_EDITOR_PLUGIN_H
 #define ANIMATION_BLEND_TREE_EDITOR_PLUGIN_H
 
+#include "core/object/script_language.h"
 #include "editor/plugins/animation_tree_editor_plugin.h"
 #include "scene/animation/animation_blend_tree.h"
 #include "scene/gui/button.h"
diff --git a/editor/plugins/editor_preview_plugins.cpp b/editor/plugins/editor_preview_plugins.cpp
index fba45e53722..1872857130c 100644
--- a/editor/plugins/editor_preview_plugins.cpp
+++ b/editor/plugins/editor_preview_plugins.cpp
@@ -33,6 +33,7 @@
 #include "core/config/project_settings.h"
 #include "core/io/file_access_memory.h"
 #include "core/io/resource_loader.h"
+#include "core/object/script_language.h"
 #include "core/os/os.h"
 #include "editor/editor_paths.h"
 #include "editor/editor_scale.h"
diff --git a/editor/plugins/editor_resource_conversion_plugin.h b/editor/plugins/editor_resource_conversion_plugin.h
index 32e05585ee7..1f8aad51ff3 100644
--- a/editor/plugins/editor_resource_conversion_plugin.h
+++ b/editor/plugins/editor_resource_conversion_plugin.h
@@ -33,7 +33,6 @@
 
 #include "core/io/resource.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 
 class EditorResourceConversionPlugin : public RefCounted {
 	GDCLASS(EditorResourceConversionPlugin, RefCounted);
diff --git a/editor/plugins/editor_resource_tooltip_plugins.h b/editor/plugins/editor_resource_tooltip_plugins.h
index 37203968423..e3a27de0bb8 100644
--- a/editor/plugins/editor_resource_tooltip_plugins.h
+++ b/editor/plugins/editor_resource_tooltip_plugins.h
@@ -33,7 +33,6 @@
 
 #include "core/object/gdvirtual.gen.inc"
 #include "core/object/ref_counted.h"
-#include "core/object/script_language.h"
 #include <scene/gui/control.h>
 
 class Control;
diff --git a/editor/plugins/packed_scene_translation_parser_plugin.cpp b/editor/plugins/packed_scene_translation_parser_plugin.cpp
index 83d77781968..7cb5244af9d 100644
--- a/editor/plugins/packed_scene_translation_parser_plugin.cpp
+++ b/editor/plugins/packed_scene_translation_parser_plugin.cpp
@@ -31,6 +31,7 @@
 #include "packed_scene_translation_parser_plugin.h"
 
 #include "core/io/resource_loader.h"
+#include "core/object/script_language.h"
 #include "scene/gui/option_button.h"
 #include "scene/resources/packed_scene.h"
 
diff --git a/editor/plugins/script_editor_plugin.h b/editor/plugins/script_editor_plugin.h
index a33c877d2dd..0241ca0e3ef 100644
--- a/editor/plugins/script_editor_plugin.h
+++ b/editor/plugins/script_editor_plugin.h
@@ -31,6 +31,7 @@
 #ifndef SCRIPT_EDITOR_PLUGIN_H
 #define SCRIPT_EDITOR_PLUGIN_H
 
+#include "core/object/script_language.h"
 #include "editor/editor_plugin.h"
 #include "scene/gui/dialogs.h"
 #include "scene/gui/panel_container.h"
diff --git a/editor/rename_dialog.cpp b/editor/rename_dialog.cpp
index 050267530dc..9eeea0ac54c 100644
--- a/editor/rename_dialog.cpp
+++ b/editor/rename_dialog.cpp
@@ -40,8 +40,8 @@
 #include "editor/editor_string_names.h"
 #include "editor/editor_themes.h"
 #include "editor/editor_undo_redo_manager.h"
+#include "editor/plugins/script_editor_plugin.h"
 #include "modules/regex/regex.h"
-#include "plugins/script_editor_plugin.h"
 #include "scene/gui/check_box.h"
 #include "scene/gui/check_button.h"
 #include "scene/gui/control.h"
diff --git a/modules/gdscript/gdscript_rpc_callable.cpp b/modules/gdscript/gdscript_rpc_callable.cpp
index 265e624b6cc..199ea813304 100644
--- a/modules/gdscript/gdscript_rpc_callable.cpp
+++ b/modules/gdscript/gdscript_rpc_callable.cpp
@@ -30,6 +30,7 @@
 
 #include "gdscript_rpc_callable.h"
 
+#include "core/object/script_language.h"
 #include "core/templates/hashfuncs.h"
 #include "scene/main/node.h"
 
diff --git a/modules/mono/editor/code_completion.cpp b/modules/mono/editor/code_completion.cpp
index ae02e162565..ae914e71ef5 100644
--- a/modules/mono/editor/code_completion.cpp
+++ b/modules/mono/editor/code_completion.cpp
@@ -31,6 +31,7 @@
 #include "code_completion.h"
 
 #include "core/config/project_settings.h"
+#include "core/object/script_language.h"
 #include "editor/editor_file_system.h"
 #include "editor/editor_settings.h"
 #include "scene/gui/control.h"
diff --git a/modules/multiplayer/scene_cache_interface.h b/modules/multiplayer/scene_cache_interface.h
index 9400417cdb5..7a7304fde8b 100644
--- a/modules/multiplayer/scene_cache_interface.h
+++ b/modules/multiplayer/scene_cache_interface.h
@@ -33,6 +33,7 @@
 
 #include "scene/main/multiplayer_api.h"
 
+class Node;
 class SceneMultiplayer;
 
 class SceneCacheInterface : public RefCounted {
diff --git a/modules/webrtc/webrtc_data_channel_extension.h b/modules/webrtc/webrtc_data_channel_extension.h
index 462e089592d..b7afbaf13a5 100644
--- a/modules/webrtc/webrtc_data_channel_extension.h
+++ b/modules/webrtc/webrtc_data_channel_extension.h
@@ -35,7 +35,6 @@
 
 #include "core/extension/ext_wrappers.gen.inc"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class WebRTCDataChannelExtension : public WebRTCDataChannel {
diff --git a/modules/webrtc/webrtc_peer_connection_extension.h b/modules/webrtc/webrtc_peer_connection_extension.h
index f3339f1eb41..05d88e0f658 100644
--- a/modules/webrtc/webrtc_peer_connection_extension.h
+++ b/modules/webrtc/webrtc_peer_connection_extension.h
@@ -35,7 +35,6 @@
 
 #include "core/extension/ext_wrappers.gen.inc"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class WebRTCPeerConnectionExtension : public WebRTCPeerConnection {
diff --git a/platform/android/os_android.cpp b/platform/android/os_android.cpp
index 2a8c07be832..8f80516a9f5 100644
--- a/platform/android/os_android.cpp
+++ b/platform/android/os_android.cpp
@@ -40,6 +40,7 @@
 
 #include "core/config/project_settings.h"
 #include "core/extension/gdextension_manager.h"
+#include "core/io/xml_parser.h"
 #include "drivers/unix/dir_access_unix.h"
 #include "drivers/unix/file_access_unix.h"
 #include "main/main.h"
diff --git a/scene/gui/code_edit.h b/scene/gui/code_edit.h
index addbb6e4680..1bd4db9e2ca 100644
--- a/scene/gui/code_edit.h
+++ b/scene/gui/code_edit.h
@@ -31,6 +31,7 @@
 #ifndef CODE_EDIT_H
 #define CODE_EDIT_H
 
+#include "core/object/script_language.h"
 #include "scene/gui/text_edit.h"
 
 class CodeEdit : public TextEdit {
diff --git a/scene/gui/rich_text_effect.h b/scene/gui/rich_text_effect.h
index 0799abaffce..4befdd182f8 100644
--- a/scene/gui/rich_text_effect.h
+++ b/scene/gui/rich_text_effect.h
@@ -33,7 +33,6 @@
 
 #include "core/io/resource.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 
 class CharFXTransform : public RefCounted {
 	GDCLASS(CharFXTransform, RefCounted);
diff --git a/scene/main/multiplayer_peer.h b/scene/main/multiplayer_peer.h
index 99be9137f86..ed1d56839fd 100644
--- a/scene/main/multiplayer_peer.h
+++ b/scene/main/multiplayer_peer.h
@@ -35,7 +35,6 @@
 
 #include "core/extension/ext_wrappers.gen.inc"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class MultiplayerPeer : public PacketPeer {
diff --git a/scene/main/node.cpp b/scene/main/node.cpp
index d8f38c91489..d8a50c4313a 100644
--- a/scene/main/node.cpp
+++ b/scene/main/node.cpp
@@ -34,6 +34,7 @@
 #include "core/core_string_names.h"
 #include "core/io/resource_loader.h"
 #include "core/object/message_queue.h"
+#include "core/object/script_language.h"
 #include "core/string/print_string.h"
 #include "instance_placeholder.h"
 #include "scene/animation/tween.h"
diff --git a/scene/property_utils.cpp b/scene/property_utils.cpp
index bf98a8d2925..063e91df670 100644
--- a/scene/property_utils.cpp
+++ b/scene/property_utils.cpp
@@ -31,6 +31,7 @@
 #include "property_utils.h"
 
 #include "core/config/engine.h"
+#include "core/object/script_language.h"
 #include "core/templates/local_vector.h"
 #include "scene/resources/packed_scene.h"
 
diff --git a/scene/resources/resource_format_text.cpp b/scene/resources/resource_format_text.cpp
index a2c04698e1e..31f6d6a84a2 100644
--- a/scene/resources/resource_format_text.cpp
+++ b/scene/resources/resource_format_text.cpp
@@ -34,6 +34,7 @@
 #include "core/io/dir_access.h"
 #include "core/io/missing_resource.h"
 #include "core/io/resource_format_binary.h"
+#include "core/object/script_language.h"
 #include "core/version.h"
 
 // Version 2: changed names for Basis, AABB, Vectors, etc.
diff --git a/scene/resources/style_box.h b/scene/resources/style_box.h
index 3f9a96be2f0..3d3a059d0b6 100644
--- a/scene/resources/style_box.h
+++ b/scene/resources/style_box.h
@@ -34,7 +34,6 @@
 #include "core/io/resource.h"
 #include "core/object/class_db.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 
 class CanvasItem;
 
diff --git a/scene/resources/syntax_highlighter.h b/scene/resources/syntax_highlighter.h
index bf263f9490d..cac2807ee20 100644
--- a/scene/resources/syntax_highlighter.h
+++ b/scene/resources/syntax_highlighter.h
@@ -33,7 +33,6 @@
 
 #include "core/io/resource.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 
 class TextEdit;
 
diff --git a/servers/audio/audio_effect.h b/servers/audio/audio_effect.h
index 11febade3af..9952246c20a 100644
--- a/servers/audio/audio_effect.h
+++ b/servers/audio/audio_effect.h
@@ -34,7 +34,6 @@
 #include "core/io/resource.h"
 #include "core/math/audio_frame.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class AudioEffectInstance : public RefCounted {
diff --git a/servers/audio/audio_stream.h b/servers/audio/audio_stream.h
index 983ca8892d2..015e89fc8ee 100644
--- a/servers/audio/audio_stream.h
+++ b/servers/audio/audio_stream.h
@@ -37,7 +37,6 @@
 #include "servers/audio_server.h"
 
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class AudioStream;
diff --git a/servers/extensions/physics_server_2d_extension.h b/servers/extensions/physics_server_2d_extension.h
index 253a58d78e5..6ddbb98766d 100644
--- a/servers/extensions/physics_server_2d_extension.h
+++ b/servers/extensions/physics_server_2d_extension.h
@@ -33,7 +33,6 @@
 
 #include "core/extension/ext_wrappers.gen.inc"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 #include "core/variant/type_info.h"
 #include "core/variant/typed_array.h"
diff --git a/servers/physics_server_3d.h b/servers/physics_server_3d.h
index cd96bf15fda..553d73b5494 100644
--- a/servers/physics_server_3d.h
+++ b/servers/physics_server_3d.h
@@ -34,7 +34,6 @@
 #include "core/io/resource.h"
 #include "core/object/class_db.h"
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/variant/native_ptr.h"
 
 class PhysicsDirectSpaceState3D;
diff --git a/servers/rendering/shader_preprocessor.h b/servers/rendering/shader_preprocessor.h
index 9448a97d68c..b29239105ab 100644
--- a/servers/rendering/shader_preprocessor.h
+++ b/servers/rendering/shader_preprocessor.h
@@ -39,6 +39,7 @@
 #include "core/typedefs.h"
 
 #include "core/io/resource_loader.h"
+#include "core/object/script_language.h"
 #include "core/os/os.h"
 #include "scene/resources/shader.h"
 #include "scene/resources/shader_include.h"
diff --git a/servers/text/text_server_extension.h b/servers/text/text_server_extension.h
index 1d475f13d4c..0fa483f3041 100644
--- a/servers/text/text_server_extension.h
+++ b/servers/text/text_server_extension.h
@@ -32,7 +32,6 @@
 #define TEXT_SERVER_EXTENSION_H
 
 #include "core/object/gdvirtual.gen.inc"
-#include "core/object/script_language.h"
 #include "core/os/thread_safe.h"
 #include "core/variant/native_ptr.h"
 #include "core/variant/typed_array.h"