Attempt to rewrite tests for -fmodule* args to clang-cl

Author: sharadhr

clang/test/Driver/cl-cxx20-modules.cppm

@@ -1,65 +1,8 @@
-// REQUIRES: system-windows
+// RUN: %clang_cl /std:c++20 --precompile -### -- %s 2>&1 | FileCheck  %s
+// CHECK: --precompile
 
-// RUN: rm -rf %t
-// RUN: mkdir -p %t
-// RUN: split-file %s %t
-
-// RUN: %clang_cl /std:c++20 --precompile "%/t/Hello.cppm" "/Fo%/t/Hello.pcm"
-// RUN: %clang_cl /std:c++20 %/t/use.cpp -fmodule-file=Hello=%/t/Hello.pcm %/t/Hello.pcm /Fo%/t/SimpleHelloWorld.exe 2>&1
-
-// RUN: %/t/SimpleHelloWorld.exe
-// CHECK: Simple Hello World!
-
-//--- Hello.cppm
-module;
-#include <iostream>
-export module Hello;
-export void hello() {
-  std::cout << "Simple Hello World!\n";
-}
-
-//--- use.cpp
-import Hello;
-int main() {
-  hello();
-  return 0;
-}
-
-//--- M.cppm
-export module M;
-export import :interface_part;
-import :impl_part;
-export void Hello();
-
-//--- interface_part.cpp
-export module M:interface_part;
-export void World();
-
-//--- impl_part.cppm
-module;
-#include <iostream>
-#include <string>
-module M:impl_part;
-import :interface_part;
-
-std::string W = "World!";
-void World() {
-  std::cout << W << std::endl;
-}
-
-//--- Impl.cpp
-module;
-#include <iostream>
-module M;
-void Hello() {
-  std::cout << "Complex Hello ";
-}
-
-//--- User.cpp
-import M;
-int main() {
-  Hello();
-  World();
-  return 0;
-}
+// RUN: %clang_cl /std:c++20 --fmodule-file=Foo=Foo.pcm -### -- %s 2>&1 | FileCheck  %s
+// CHECK: -fmodule-file=Foo=Foo.pcm
 
+// RUN: %clang_cl /std:c++20 --fprebuilt-module-path=. -### -- %s 2>&1 | FileCheck  %s
+// CHECK: -fprebuilt-module-path=.