C++ PATCH for c++/56104 (bogus warning with pointer to member function)

Jason Merrill jason@redhat.com
Fri Jan 25 17:57:00 GMT 2013

We were getting type-punning warnings while building up code to 
dereference a pointer to member function because the compiler can see 
that the complete object doesn't have a vtable.  In such cases, we can 
also see that and avoid building up that code in the first place.

Tested x86_64-pc-linux-gnu, applying to trunk.  I'm inclined not to 
apply it to 4.7, since it's just a bogus warning.
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