Add comments to justify why this is the only check that is needed.

These are supposed to point to the original buffer when the types were 
unmarshalled.

Revert "rpcrt4: Try to free every non-stack pointer in PointerFree now that NdrFree does the sanity checking for us.".

This reverts commit 6db648302ce43f625a073426a35a6f40b7869d8b.

Tests show the assumptions in a commit that this commit depends on are 
not valid.

widl: Don't write redundant FC_RP type format out for conformant strings, unless it is a top level variable.

Cache the enum info so that repeated calls to EnumFontFamiles and such
does not have to repeatedly load the font file.

widl: Remove some confusion in how version numbers are packed into an attribute by defining some macros for this purpose.

Remove unneeded includes.

rpcrt4: Try to free every non-stack pointer in PointerFree now that NdrFree does the sanity checking for us.

rpcrt4: Store allocated memory in a singly-linked list to keep track of what we should and shouldn't free in NdrFree.