[driver] In general, the driver claims redundant args and uses the last arg.
However, the '-x' option has special handling and wasn't following this
paradigm. Fix it to do so by claiming the arg as we parse the '-x' option.
rdar://11203340
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154231 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index 35e6398..7ab3278 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -1003,6 +1003,7 @@
} else if (A->getOption().matches(options::OPT_x)) {
InputTypeArg = A;
InputType = types::lookupTypeForTypeSpecifier(A->getValue(Args));
+ A->claim();
// Follow gcc behavior and treat as linker input for invalid -x
// options. Its not clear why we shouldn't just revert to unknown; but