Upgrade LLVM and Clang to 3.0.
Enable shared libraries in LLVM and build with REQUIRES_RTTI=1 as
requires by some consumers.
PR: ports/164324, ports/164325
(Only the first 10 of 16 ports in this commit are shown above. )
Upgrade LLVM, Clang, and llvm-gcc to 2.9.
Add a number of bug fixes from our base gcc to llvm-gcc.[0]
PR: ports/154927 [0]
Submitted by: Pedro Giffuni <giffunip at tutopia com> [0]