Add support for -std=gnu90 and -std=c++03, for compatibility with modern gcc.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141922 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/std.cpp b/test/Driver/std.cpp
index 99deb11..7704c8d 100644
--- a/test/Driver/std.cpp
+++ b/test/Driver/std.cpp
@@ -1,5 +1,6 @@
 // RUN: %clang -std=c++98 %s -Wno-c++0x-compat -fsyntax-only 2>&1 | FileCheck -check-prefix=CXX98 %s
 // RUN: %clang -std=gnu++98 %s -Wno-c++0x-compat -fsyntax-only 2>&1 | FileCheck -check-prefix=GNUXX98 %s
+// RUN: %clang -std=c++03 %s -Wno-c++0x-compat -fsyntax-only 2>&1 | FileCheck -check-prefix=CXX98 %s
 // RUN: %clang -std=c++0x %s -fsyntax-only 2>&1 | FileCheck -check-prefix=CXX11 %s
 // RUN: %clang -std=gnu++0x %s -fsyntax-only 2>&1 | FileCheck -check-prefix=GNUXX11 %s
 // RUN: %clang -std=c++11 %s -fsyntax-only 2>&1 | FileCheck -check-prefix=CXX11 %s