clang-cl: Parse the /arch, /Yu and /Fp options (PR17736)

We don't support these options, but should at least parse them.

llvm-svn: 193702
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
index 4d0c3ed..d8c9701 100644
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -120,6 +120,7 @@
 
 // Unsupported but parsed options. Check that we don't error on them.
 // (/Zs is for syntax-only)
+// RUN: %clang_cl /Zs /arch:sse2 /Yustdafx.h /FpDebug\main.pch -- %s 2>&1
 // RUN: %clang_cl /Zs /EHsc /Fdfoo /fp:precise /Gd /GL /GL- -- %s 2>&1
 // RUN: %clang_cl /Zs /Gm /Gm- /GS /Gy /Gy- /GZ -- %s 2>&1
 // RUN: %clang_cl /Zs /ofoo.obj /o foo.obj -- %s 2>&1