Don't perform template argument deduction against invalid templates;
it's likely to lead to a crash later on. Fixes PR12933 /
<rdar://problem/11525335>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163838 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed