Move ShowWindow tests for children with an invisible parent into a
separate test, add more ShowWindow tests. The tests show that an
assumption in dlls/x11drv/winpos.c that SetWindowPos should not be
called on a child with an invisible parent is not always true.

common ComputeConformance function to store the result in
pStubMsg->MaxCount (as this is what callback function store the
conformance value into anyway).

The conformance has to be the first thing in the buffer, in accordance 
with the DCE/RPC spec and to be compatible with the pointer layout 
format strings that MIDL generates.

array functions, before calling a function that could change it and
cause the wrong number of loop iterations.

Pointers in a non-encapsulated union behave like embedded pointers, so 
don't rely on the NdrPointer* functions doing the right thing in this 
case and call the Pointer* functions directly.

rpcrt4: Rename ComplexStructSize to ComplexStructMemorySize to reflect the fact that it increments the buffer.

Replace the code in EmbeddedComplexSize that sizes non-encapsulated 
unions without using a memory sizer routine, since this function 
shouldn't touch the buffer.

Add a new function EmbeddedComplexMemorySize and use it in some memory 
sizer routines where EmbeddedComplexSize was previously used.

rpcrt4: Fix embedded pointers in arrays by taking into account the iteration when calculating the appropriate memory and buffer pointers.

Also set the compatibility version.

Add trailing '\n's to trace calls.
Remove spaces before '\n'.