Bug description
Compiling esm code cannot be used directly in the bundler module,.e.g:

The Object.assign cant work. Because bundle module is not the same as browser esm.module export variable just only have getter.


Steps to reproduce
- use binding
@external("../test","test")
- complie esm code

3. I hava a Compatibility method,but i think Not good enough.

AssemblyScript version
^0.27.0