Add lib.esnext.sharedmemory (#61646)

src/compiler/commandLineParser.ts

@@ -249,6 +249,7 @@ const libEntries: [string, string][] = [
     ["esnext.promise", "lib.esnext.promise.d.ts"],
     ["esnext.float16", "lib.esnext.float16.d.ts"],
     ["esnext.error", "lib.esnext.error.d.ts"],
+    ["esnext.sharedmemory", "lib.esnext.sharedmemory.d.ts"],
     ["decorators", "lib.decorators.d.ts"],
     ["decorators.legacy", "lib.decorators.legacy.d.ts"],
 ];

src/compiler/utilities.ts

@@ -1452,6 +1452,9 @@ export const getScriptTargetFeatures: () => ScriptTargetFeatures = /* @__PURE__
             es2024: [
                 "waitAsync",
             ],
+            esnext: [
+                "pause",
+            ],
         })),
         SharedArrayBuffer: new Map(Object.entries({
             es2017: [

src/lib/esnext.d.ts

@@ -8,3 +8,4 @@
 /// <reference lib="esnext.promise" />
 /// <reference lib="esnext.float16" />
 /// <reference lib="esnext.error" />
+/// <reference lib="esnext.sharedmemory" />

src/lib/esnext.sharedmemory.d.ts

@@ -0,0 +1,7 @@
+interface Atomics {
+    /**
+     * Performs a finite-time microwait by signaling to the operating system or
+     * CPU that the current executing code is in a spin-wait loop.
+     */
+    pause(n?: number): void;
+}

src/lib/libs.json

@@ -88,6 +88,7 @@
         "esnext.promise",
         "esnext.float16",
         "esnext.error",
+        "esnext.sharedmemory",
         "decorators",
         "decorators.legacy",
         // Default libraries