Revert my r181563, breaks tests on buildbots


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181568 91177308-0d34-0410-b5e6-96231b3b80d8
ArrayRef'ize Sema::FindAllocationOverload

Now tests should pass.  The previous error was caused by a misplaced backing
array for MutableArrayRef that I introduced.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181570 91177308-0d34-0410-b5e6-96231b3b80d8
ArrayRef'ize Sema::CheckMessageArgumentTypes


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181571 91177308-0d34-0410-b5e6-96231b3b80d8
ArrayRef'ize ShuffleVectorExpr::setExprs

But ShuffleVectorExpr should be tail-allocating the storage for expressions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181572 91177308-0d34-0410-b5e6-96231b3b80d8