Index: unittests/ASTMatchers/ASTMatchersTest.h
===================================================================
--- unittests/ASTMatchers/ASTMatchersTest.h
+++ unittests/ASTMatchers/ASTMatchersTest.h
@@ -79,6 +79,8 @@
   // Some tests need rtti/exceptions on
   Args.push_back("-frtti");
   Args.push_back("-fexceptions");
+  // Keep the same template handling behavior on Windows and Linux.
+  Args.push_back("-fno-delayed-template-parsing");
   if (!runToolOnCodeWithArgs(
           Factory->create(), Code, Args, Filename, "clang-tool",
           std::make_shared<PCHContainerOperations>(), VirtualMappedFiles)) {