Fix __importDefault when used on typescript libraries (#51474)

Author: jakebailey

Diff for: src/tsserverlibrary/tsserverlibrary.ts

@@ -1 +1,2 @@
-export * from "./_namespaces/ts";
+import * as ts from "./_namespaces/ts";
+export = ts;

Diff for: src/typescript/typescript.ts

@@ -15,4 +15,5 @@ if (typeof console !== "undefined") {
     };
 }
 
-export * from "./_namespaces/ts";
+import * as ts from "./_namespaces/ts";
+export = ts;