No error or warning when given invalid file about iotjs

[ILyoan]

This is not bug. remove bug tag, attach enhancement

[ILyoan]

in module.js

Module.load = function(id, parent, isMain) {
  if(process.native_sources[id]){
    return Native.require(id);
  }
  var module = new Module(id, parent);

  var modPath = Module.resolveModPath(module.id, module.parent);


  if(modPath) {
    module.filename = modPath;
    module.SetModuleDirs(modPath);
    module.compile();
  }

  return module.exports;
};

in case of no file exisit, module.resolvemodPath() returns false and Module.load returned doing nothing. we can raise an exception here when modPath is false.

[ILyoan]

node.js throws Error in this case.

[chunseoklee]

#86 resolved this issue.

[ILyoan]

Closing as #86 landed

[ILyoan]

We can report error after #87, before that just abort.