--module commonjs --target es5 --lib es5 0.ts --lib es2015.core, es2015.symbol.wellknown 
CompilerOptions::
{
  "module": 1,
  "target": 1,
  "lib": [
    "lib.es2015.core.d.ts",
    "lib.es2015.symbol.wellknown.d.ts"
  ]
}
WatchOptions::

FileNames::
0.ts
Errors::
