Don't pass StringRefs around by const reference. Pass by value instead per coding standards. NFC
llvm-svn: 248137
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 401975d..cd1dd73 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -1670,7 +1670,7 @@
/// parameter in reciprocal argument strings. Return false if there is an error
/// parsing the refinement step. Otherwise, return true and set the Position
/// of the refinement step in the input string.
-static bool getRefinementStep(const StringRef &In, const Driver &D,
+static bool getRefinementStep(StringRef In, const Driver &D,
const Arg &A, size_t &Position) {
const char RefinementStepToken = ':';
Position = In.find(RefinementStepToken);