Patch for function cloning to inline all blocks whose address is taken

Not all address taken blocks get inlined. The reason is
that a blocks new address is known only when it is cloned. But e.g.
a branch instruction in a different block could need that address earlier
while it gets cloned. The solution is to collect the set of all
blocks that can potentially get inlined and compute a new block address
up front. Then clone and cleanup.

rdar://16427209


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207713 91177308-0d34-0410-b5e6-96231b3b80d8
Convert more loops to range-based equivalents

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207714 91177308-0d34-0410-b5e6-96231b3b80d8
Restore condition incorrectly changed in r96289 to the older state.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207716 91177308-0d34-0410-b5e6-96231b3b80d8
DebugInfo: Omit DW_AT_artificial on DW_TAG_formal_parameters in DW_TAG_inlined_subroutines.

They just don't need to be there - they're inherited from the abstract
definition. In theory I would like them to be inherited from the
declaration, but the DWARF standard doesn't quite say that... we can
probably do it anyway but I'm less confident about that so I'll leave it
for a separate commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207717 91177308-0d34-0410-b5e6-96231b3b80d8
Prepare support of Itanium ABI on ARM as opposed to EHABI by
conditionally emitting .fnstart and friends only for EHABI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207718 91177308-0d34-0410-b5e6-96231b3b80d8