Fix WindowsColon issue

Author: mcbarton

lib/Interpreter/Paths.cpp

@@ -354,7 +354,7 @@ bool SplitPaths(llvm::StringRef PathStr,
 
 #if defined(_WIN32)
   // Support using a ':' delimiter on Windows.
-  const bool WindowsColon = Delim.equals(":");
+  const bool WindowsColon = (Delim == ":");
 #endif
 
   bool AllExisted = true;