Add LangOptions marker for assembler-with-cpp mode and use to define
__ASSEMBLER__ properly. Patch from Roman Divacky (with minor
formatting changes). Thanks!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60362 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/clang.cpp b/Driver/clang.cpp
index 34fd62f..5c89ed0 100644
--- a/Driver/clang.cpp
+++ b/Driver/clang.cpp
@@ -353,6 +353,7 @@
     PCH = true;
     break;
   case langkind_asm_cpp:
+    Options.AsmPreprocessor = 1;
     // FALLTHROUGH
   case langkind_c_cpp:
     NoPreprocess = true;