std: Update test "" to test where it makes sense

lib/std/Thread.zig

@@ -553,7 +553,7 @@ pub fn getCurrentThreadId() u64 {
     }
 }
 
-test "" {
+test {
     if (!builtin.single_threaded) {
         std.testing.refAllDecls(@This());
     }

lib/std/build.zig

@@ -2985,7 +2985,7 @@ test "LibExeObjStep.addPackage" {
     std.testing.expectEqualStrings(pkg_top.name, dupe.name);
 }
 
-test "" {
+test {
     // The only purpose of this test is to get all these untested functions
     // to be referenced to avoid regression so it is okay to skip some targets.
     if (comptime std.Target.current.cpu.arch.ptrBitWidth() == 64) {

lib/std/build/emit_raw.zig

@@ -223,6 +223,6 @@ pub const InstallRawStep = struct {
     }
 };
 
-test "" {
+test {
     std.testing.refAllDecls(InstallRawStep);
 }

lib/std/c.zig

@@ -14,7 +14,7 @@ pub const parse = @import("c/parse.zig").parse;
 pub const ast = @import("c/ast.zig");
 pub const builtins = @import("c/builtins.zig");
 
-test "" {
+test {
     _ = tokenizer;
 }
 

lib/std/compress.zig

@@ -9,7 +9,7 @@ pub const deflate = @import("compress/deflate.zig");
 pub const gzip = @import("compress/gzip.zig");
 pub const zlib = @import("compress/zlib.zig");
 
-test "" {
+test {
     _ = gzip;
     _ = zlib;
 }

lib/std/fs.zig

@@ -2475,7 +2475,7 @@ fn copy_file(fd_in: os.fd_t, fd_out: os.fd_t) CopyFileError!void {
     }
 }
 
-test "" {
+test {
     if (builtin.os.tag != .wasi) {
         _ = makeDirAbsolute;
         _ = makeDirAbsoluteZ;

lib/std/io.zig

@@ -171,7 +171,7 @@ test "null_writer" {
     null_writer.writeAll("yay" ** 10) catch |err| switch (err) {};
 }
 
-test "" {
+test {
     _ = @import("io/bit_reader.zig");
     _ = @import("io/bit_writer.zig");
     _ = @import("io/buffered_atomic_file.zig");

lib/std/io/c_writer.zig

@@ -34,7 +34,7 @@ fn cWriterWrite(c_file: *std.c.FILE, bytes: []const u8) std.fs.File.WriteError!u
     }
 }
 
-test "" {
+test {
     if (!builtin.link_libc) return error.SkipZigTest;
 
     const filename = "tmp_io_test_file.txt";

lib/std/math.zig

@@ -278,7 +278,7 @@ pub const Complex = complex.Complex;
 
 pub const big = @import("math/big.zig");
 
-test "" {
+test {
     std.testing.refAllDecls(@This());
 }
 

lib/std/math/big.zig

@@ -20,7 +20,7 @@ comptime {
     assert(limb_info.signedness == .unsigned);
 }
 
-test "" {
+test {
     _ = int;
     _ = Rational;
     _ = Limb;

lib/std/math/big/int.zig

@@ -2344,6 +2344,6 @@ fn fixedIntFromSignedDoubleLimb(A: SignedDoubleLimb, storage: []Limb) Mutable {
     };
 }
 
-test "" {
+test {
     _ = @import("int_test.zig");
 }

lib/std/net.zig

@@ -1769,6 +1769,6 @@ pub const StreamServer = struct {
     }
 };
 
-test "" {
+test {
     _ = @import("net/test.zig");
 }

lib/std/os.zig

@@ -43,7 +43,7 @@ comptime {
     assert(@import("std") == std); // std lib tests require --override-lib-dir
 }
 
-test "" {
+test {
     _ = darwin;
     _ = freebsd;
     _ = linux;

lib/std/os/linux.zig

@@ -1355,7 +1355,7 @@ pub fn madvise(address: [*]u8, len: usize, advice: u32) usize {
     return syscall3(.madvise, @ptrToInt(address), len, advice);
 }
 
-test "" {
+test {
     if (builtin.os.tag == .linux) {
         _ = @import("linux/test.zig");
     }

lib/std/rand.zig

@@ -602,6 +602,6 @@ test "CSPRNG" {
     expect(a ^ b ^ c != 0);
 }
 
-test "" {
+test {
     std.testing.refAllDecls(@This());
 }

lib/std/special/compiler_rt/shift.zig

@@ -124,7 +124,7 @@ pub fn __aeabi_llsr(a: i64, b: i32) callconv(.AAPCS) i64 {
     return __lshrdi3(a, b);
 }
 
-test "" {
+test {
     _ = @import("ashrdi3_test.zig");
     _ = @import("ashrti3_test.zig");
 

lib/std/special/compiler_rt/sparc.zig

@@ -68,7 +68,6 @@ pub fn _Qp_fge(a: *f128, b: *f128) callconv(.C) bool {
     return cmp == @enumToInt(FCMP.Greater) or cmp == @enumToInt(FCMP.Equal);
 }
 
-
 // Casting
 
 pub fn _Qp_dtoq(c: *f128, a: f64) callconv(.C) void {

lib/std/std.zig

@@ -86,7 +86,7 @@ comptime {
     _ = start;
 }
 
-test "" {
+test {
     if (builtin.os.tag == .windows) {
         // We only test the Windows-relevant stuff to save memory because the CI
         // server is hitting OOM. TODO revert this after stage2 arrives.

lib/std/target.zig

@@ -1577,6 +1577,6 @@ pub const Target = struct {
     }
 };
 
-test "" {
+test {
     std.testing.refAllDecls(Target.Cpu.Arch);
 }

lib/std/testing.zig

@@ -443,7 +443,7 @@ fn printLine(line: []const u8) void {
     print("{s}\n", .{line});
 }
 
-test "" {
+test {
     expectEqualStrings("foo", "foo");
 }
 

lib/std/valgrind.zig

@@ -262,7 +262,7 @@ pub fn monitorCommand(command: [*]u8) bool {
 pub const memcheck = @import("valgrind/memcheck.zig");
 pub const callgrind = @import("valgrind/callgrind.zig");
 
-test "" {
+test {
     _ = @import("valgrind/memcheck.zig");
     _ = @import("valgrind/callgrind.zig");
 }

lib/std/zig.zig

@@ -255,6 +255,6 @@ test "parseCharLiteral" {
     std.testing.expectError(error.InvalidCharacter, parseCharLiteral("'\\u{FFFF}x'", &bad_index));
 }
 
-test "" {
+test {
     @import("std").testing.refAllDecls(@This());
 }

lib/std/zig/system.zig

@@ -898,6 +898,6 @@ pub const NativeTargetInfo = struct {
     }
 };
 
-test "" {
+test {
     _ = @import("system/macos.zig");
 }

src/codegen/aarch64.zig

@@ -906,7 +906,7 @@ pub const Instruction = union(enum) {
     }
 };
 
-test "" {
+test {
     testing.refAllDecls(@This());
 }