Avoid overwrite of compiled module wrapper attributes

[deepcharm]

Fix overwriting of the compiled wrapper class attributes by those of the wrapped class itself: Copy only those attributes which are not already present in the wrapper.

In the current implementation of the CompiledModuleWrapper the wrapper attributes (eg forward method) are overwritten by self._dict_ = module._dict_.copy():

def CompiledModuleWrapper(mod, compile_config: Union[CompileConfig, None] = None):
     class wrapper(mod.__class__):
         def __init__(self, module, compile_config: Union[CompileConfig, None] = None):
             self.__dict__ = module.__dict__.copy()

This causes the wrapper's forward method not being called and, consequently, the wrapped module not compiled. Instead, the wrapped module forward method is being called as illustrated in the diagram below (a real scenario from Deespeed-Chat):

The proposed fix copies only those attributes which are not present in the wrapper class, thus implementing the desired inheritance quality of the wrapper.

Attached is a simple reproducer of the problem.
compiled_module_wrapper_bug.zip

[tohtana]

Thank you for the fix!