Do overload resolution for compound assignment even if only the RHS is overloadable. Compound assignment may be overloaded as a non-member, and anyway the overload resolution is necessary because it triggers implicit (used-defined) conversions. Fixes PR5512, but not really the deeper issues lurking. Those are standard defects.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89268 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed