Allow clang to pass -x cl through to compiler driver.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92686 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Driver/Types.def

@@ -41,6 +41,7 @@
 // C family source language (with and without preprocessing).
 TYPE("cpp-output",               PP_C,         INVALID,         "i",     "u")
 TYPE("c",                        C,            PP_C,            0,       "u")
+TYPE("cl",                       CL,           PP_C,            0,       "u")
 TYPE("objective-c-cpp-output",   PP_ObjC,      INVALID,         "mi",    "u")
 TYPE("objective-c",              ObjC,         PP_ObjC,         0,       "u")
 TYPE("c++-cpp-output",           PP_CXX,       INVALID,         "ii",    "u")

lib/Driver/Types.cpp

@@ -77,6 +77,7 @@ bool types::isAcceptedByClang(ID Id) {
 
   case TY_Asm:
   case TY_C: case TY_PP_C:
+  case TY_CL:
   case TY_ObjC: case TY_PP_ObjC:
   case TY_CXX: case TY_PP_CXX:
   case TY_ObjCXX: case TY_PP_ObjCXX:
@@ -133,6 +134,7 @@ types::ID types::lookupTypeForExtension(const char *Ext) {
            .Case("mm", TY_ObjCXX)
            .Case("cc", TY_CXX)
            .Case("CC", TY_CXX)
+           .Case("cl", TY_CL)
            .Case("cp", TY_CXX)
            .Case("hh", TY_CXXHeader)
            .Case("hpp", TY_CXXHeader)