Further simplify r206430.

rdar://problem/16636569.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@206434 91177308-0d34-0410-b5e6-96231b3b80d8
PR19452: Implement more of [over.match.oper]p3's restrictions on which non-member overloaded operators can be found when no operand is of class type. We used to fail to implement this rule if there was an operand of dependent type.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@206435 91177308-0d34-0410-b5e6-96231b3b80d8
Implement [over.match.oper]p3 properly, by filtering the non-candidates out
when building the candidate set, rather than trying to contort name lookup into
handling this.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@206436 91177308-0d34-0410-b5e6-96231b3b80d8