Update Windows prebuilt DLLs for LLVM 3.4.

Change-Id: I039deb570f453aed9bf007c4bff0ac6a958a86da
diff --git a/tools/windows/libLLVM.dll b/tools/windows/libLLVM.dll
index bb6b90d..ad8034f 100755
--- a/tools/windows/libLLVM.dll
+++ b/tools/windows/libLLVM.dll
Binary files differ
diff --git a/tools/windows/libclang.dll b/tools/windows/libclang.dll
index 5ef3bc4..b9e5193 100755
--- a/tools/windows/libclang.dll
+++ b/tools/windows/libclang.dll
Binary files differ