Dont allow namespace reexport symbols when looking up valid local names (#43969)

tests/cases/compiler/declarationEmitDoesNotUseReexportedNamespaceAsLocal.ts

@@ -0,0 +1,9 @@
+// @target: esnext
+// @module: esnext
+// @declaration: true
+// @filename: sub.ts
+export function a() {}
+// @filename: index.ts
+export const x = add(import("./sub"));
+export * as Q from "./sub";
+declare function add<T>(x: Promise<T>): T;