Run the -cxx-abi test in 32-bit mode as the 64-bit one crashes on the bots

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191760 91177308-0d34-0410-b5e6-96231b3b80d8
Move checkStringLiteralArgument into Sema class

It's a useful function to have around for target-specific attributes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191768 91177308-0d34-0410-b5e6-96231b3b80d8
Implement ARM GNU-style interrupt attribute

This attribute allows users to use a modified C or C++ function as an ARM
exception-handling function and, with care, to successfully return control to
user-space after the issue has been dealt with.

rdar://problem/14207019

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191769 91177308-0d34-0410-b5e6-96231b3b80d8
Typo in ARM __attribute__((interrupt)) documentation

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191771 91177308-0d34-0410-b5e6-96231b3b80d8
Refactoring: split addTokenToState into two methods.

Summary: Pure refactoring, should be no semantic changes.

Reviewers: djasper

Reviewed By: djasper

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D1796

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191772 91177308-0d34-0410-b5e6-96231b3b80d8