When performing reference initialization for the purposes of overload
resolution ([over.ics.ref]), we take some shortcuts required by the
standard that effectively permit binding of a const volatile reference
to an rvalue. We have to treat lightly here to avoid infinite
recursion.

Fixes PR6177.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101712 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed