[cfe-dev] [patch] Support explicit C++ member operator syntax

[James Porter]

Attached is a patch to add support for explicitly referring to member 
operators in C++, e.g. x.operator++(). It supports both overloaded 
operators and conversion operators.

The patch also contains a fix in the same area of the code to eliminate 
a crash when compiling syntactically-incorrect code as part of a 
member-reference (e.g. x.int).  That crash was actually my fault anyway, 
since it came about from adding support for qualified-ids in class 
member access. If you think the fix should be a separate patch, let me 
know and I'll pull them apart.

There are also tests for both parts of the patch.

- Jim
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