Resolve export= module members

Author: billti

src/compiler/checker.ts

@@ -1465,6 +1465,10 @@ namespace ts {
 
         function getExportsForModule(moduleSymbol: Symbol): SymbolTable {
             const visitedSymbols: Symbol[] = [];
+
+            // A module defined by an 'export=' consists on one export that needs to be resolved
+            moduleSymbol = resolveExternalModuleSymbol(moduleSymbol);
+
             return visit(moduleSymbol) || moduleSymbol.exports;
 
             // The ES6 spec permits export * declarations in a module to circularly reference the module itself. For example,