[PATCH] [ASan tests] Use clang-cl to build tests on Windows

[Reid Kleckner]

================
Comment at: cmake/Modules/AddCompilerRT.cmake:140
@@ -140,1 +139,3 @@
+    COMMAND ${COMPILER_RT_TEST_COMPILER} ${TEST_OBJECTS}
+            ${COMPILER_RT_TEST_COMPILER_EXE}"${output_bin}"
             ${TEST_LINK_FLAGS}
----------------
Alexey Samsonov wrote:
> Sanity check: is it ok to not have a space between ${COMPILER_RT_TEST_COMPILER_EXE} and "${output_bin}" ?
There cannot be a space between -Fo and its argument.  =/

http://reviews.llvm.org/D3680