Follow-up to the reverting of r51218. This puts the checks out-of-line. Because

they aren't in the header file, systems with a <string> header file that isn't
64-bit clean shouldn't warn if #including Path.h and specifying
-Wshorten-64-to-32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51393 91177308-0d34-0410-b5e6-96231b3b80d8

lib/System/Path.cpp

@@ -24,6 +24,18 @@ using namespace sys;
 //===          independent code.
 //===----------------------------------------------------------------------===//
 
+bool Path::operator==(const Path &that) const {
+  return path == that.path;
+}
+
+bool Path::operator!=(const Path &that) const {
+  return path != that.path;
+}
+
+bool Path::operator<(const Path& that) const {
+  return path < that.path;
+}
+
 std::ostream& llvm::operator<<(std::ostream &strm, const sys::Path &aPath) {
   strm << aPath.toString();
   return strm;