Merging r196712:
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r196712 | rafael | 2013-12-07 17:13:22 -0800 (Sat, 07 Dec 2013) | 12 lines

Fix pr18174.

Clang outputs LLVM one top level decl at a time. This combined with the
visibility computation code looking for the newest NamespaceDecl would cause
it to produce different results for nested namespaces.

The two options for producing consistent results are
* Delay codegen of anything inside a namespace until the end of the file.
* Don't look for the newest NamespaceDecl.

This patch implements the second option.
This matches the gcc behavior too.
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_34@196745 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r196724:
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r196724 | tnorthover | 2013-12-08 07:24:55 -0800 (Sun, 08 Dec 2013) | 5 lines

ARM: teach Sema that "r" can match 64-bit values

We already support using "r" on 64-bit values (a GPRPair is
allocated), but Sema doesn't know this yet so issues a warning. This
should fix it.
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_34@196746 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r196720:
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r196720 | joerg | 2013-12-08 05:54:58 -0800 (Sun, 08 Dec 2013) | 3 lines

Extend assembler handling for NetBSD/MIPS to pass down the correct ABI,
architecture and PIC flag.

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_34@196747 91177308-0d34-0410-b5e6-96231b3b80d8