Disabled to make the buildbots happy in
c004d7534d. In C++14, the functions here
use a MaterializeTemporaryExpr, which the new constant interpreter
doesn't support yet. Add comments for this and two new RUN lines.
Implement ArrayInitLoopExprs, which are used in copy constructors to
copy arrays. Also fix problems encountered while doing that.
Differential Revision: https://reviews.llvm.org/D134361
Implement passing the this pointer to member functions and constructors.
The this pointer is passed via the stack. This changes the functions to
explicitly track whether they have a RVO pointer and a this pointer.
Differential Revision: https://reviews.llvm.org/D134699