include: Make CLIENT_CALL_RETURN definition platform-specific to handle the return type incompatibility in NdrClientCall.

This avoids allocating them on the heap, and avoids the need for a
separate vtbl.

rpcrt4: Return the stack size from the ObjectStubless function so that the thunks are independent from the number of arguments.

This avoids sending uninitialised data on the wire.

Only call IRpcChannelBuffer_FreeBuffer in NdrProxyFreeBuffer if 
fBufferValid is set.

Make StdProxy_GetIID and StdProxy_GetChannel return void.
Don't bother checking for This and pRpcChannelBuffer being NULL as 
native doesn't.

functions to cproxy.c since both sets of functions depend on the
implementations of the standard stubs and proxies.

marshaling in native oleaut32 with builtin rpcrt4 to tell them what is
wrong.

StdProxy_Construct as it will just crash anyway.

Pass in the ProxyInfo and Index to StdProxy_Construct instead of just
the three members of the structure that were previously needed.
Fix the detection of stubless proxies.

Update the Wine sources accordingly.