When a dependent Objective-C++ message send was able to resolve the

When a dependent Objective-C++ message send was able to resolve the
method being called at template definition time, retain that method
and pass it through to type-checking. We will not perform any lookup
for the method during template instantiation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102081 91177308-0d34-0410-b5e6-96231b3b80d8