[cfe-commits] mark vtables linkonce_odr

[Nick Lewycky]

I was looking at Clang output for C++ code and noticed that we were 
emitting vtables with 'weak' linkage. From what I can see, clang already 
has the full declaration when it goes to emit the vtable, and should be 
using 'linkonce_odr' which gives LLVM some hope of devirtualizing.

Is that correct? If so, the attached patch makes the 1-line change to 
make it so. Please review!

Nick
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