Prefer global over object members completions after ... (#57542)

Author: Andarist

src/services/completions.ts

@@ -4322,6 +4322,7 @@ function getCompletionData(
      * @returns true if 'symbols' was successfully populated; false otherwise.
      */
     function tryGetObjectLikeCompletionSymbols(): GlobalsSearch | undefined {
+        if (contextToken?.kind === SyntaxKind.DotDotDotToken) return GlobalsSearch.Continue;
         const symbolsStartIndex = symbols.length;
         const objectLikeContainer = tryGetObjectLikeCompletionContainer(contextToken, position, sourceFile);
         if (!objectLikeContainer) return GlobalsSearch.Continue;

tests/cases/fourslash/completionsDotDotDotInObjectLiteral1.ts

@@ -0,0 +1,15 @@
+/// <reference path="fourslash.ts" />
+
+//// // https://github.com./microsoft/TypeScript/issues/57540
+////
+//// const foo = { b: 100 };
+////
+//// const bar: {
+////   a: number;
+////   b: number;
+//// } = {
+////   a: 42,
+////   .../*1*/
+//// };
+
+verify.completions({ marker: "1", includes: ["foo"], excludes: ["b"] });