[driver crash diagnostics] Strip -internal-isystem and -internal-externc-isystem.
rdar://11949066

llvm-svn: 160752
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index da7fe18..5be60b8 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -524,6 +524,8 @@
         Flag.push_back("-idirafter ");
         Flag.push_back("-include ");
         Flag.push_back("-include-pch ");
+        Flag.push_back("-internal-isystem ");
+        Flag.push_back("-internal-externc-isystem ");
         Flag.push_back("-iprefix ");
         Flag.push_back("-iwithprefix ");
         Flag.push_back("-iwithprefixbefore ");