Make LLVM compile with prebuilt clang.

bug 13588226

Change-Id: I278371c48b8da811a4bdb1be99bfe6474b0d525a
Merge "Make LLVM compile with prebuilt clang."
Don't try to use Clang on Windows yet.

bug 13588226

Change-Id: I8a3e4293a3cb9acaa193779b8a548497b74c69fa
Revert "Make LLVM compile with prebuilt clang."

This reverts commit 7d8cea6e8e2bddaa4475835106bf88d214d95279.

Change-Id: Ide81c8f7662646070481edb9f3196a0d9152adc2
Merge "Revert "Make LLVM compile with prebuilt clang.""
Remove the -O1 WAR for SROA.cpp compilation.

Bug: 8047767
Change-Id: I036af8d0578f723d3f5cb07f1d26b3c6895d8690
Merge "Remove the -O1 WAR for SROA.cpp compilation."
Update to LLVM 3.5a.

Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617
Merge "Update to LLVM 3.5a."
CleanSpec for clang 3.5

Change-Id: I301d2e56f013d7f9012372fd6c8c3995b88ea4a7
Merge "CleanSpec for clang 3.5"
Merge "Don't try to use Clang on Windows yet."