fix(51054): skip completion in the jsdoc type literals for typescript files

Author: a-tarasyuk

src/services/completions.ts

@@ -3004,6 +3004,7 @@ namespace ts.Completions {
         function tryGetObjectTypeLiteralInTypeArgumentCompletionSymbols(): GlobalsSearch | undefined {
             const typeLiteralNode = tryGetTypeLiteralNode(contextToken);
             if (!typeLiteralNode) return GlobalsSearch.Continue;
+            if (typeLiteralNode.flags & (NodeFlags.JSDoc & ~NodeFlags.JavaScriptFile)) return GlobalsSearch.Fail;
 
             const intersectionTypeNode = isIntersectionTypeNode(typeLiteralNode.parent) ? typeLiteralNode.parent : undefined;
             const containerTypeNode = intersectionTypeNode || typeLiteralNode;

tests/cases/fourslash/completionsAtJsDoc.ts

@@ -0,0 +1,8 @@
+/// <reference path="fourslash.ts" />
+
+////interface Foo<T> { }
+/////**
+//// * @type {Foo<{/**/}>}
+//// */
+
+verify.completions({ marker: "", exact: [], isNewIdentifierLocation: true });