Microsoft/TypeScript — pull request #412 by sheetalkamat (2014-08-09 00:18:12+00:00)
Title: Check for the accessible symbol from exported import

eg:
// @Filename: w1.ts
export = Widget1
class Widget1 { name = 'one'; }

// @Filename: exporter.ts
export import w = require('./w1');

// @Filename: consumer.ts
import e = require('./exporter');

export function w(): e.w { // Should be OK
return new e.w();
}

In this looking for the name of return type of function w,
not just look for the alias == SymbolOfReturnType but also
look for alias.exportedSymbols === symbolOfReturnType
and qualify it during the toString