Reorganize some of the code to note overload candidates.  Improves the
fidelity with which we note them as functions/constructors and templates
thereof.  Also will be helpful when reporting bad conversions (next).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93224 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed