fix lazy swiftinterface compilation for -resource-dir

Author: redsun82

actions/build/action.yml

@@ -0,0 +1,26 @@
+diff --git a/lib/Frontend/ModuleInterfaceLoader.cpp b/lib/Frontend/ModuleInterfaceLoader.cpp
+index 2a490a680d8..8d8f48aeed0 100644
+--- a/lib/Frontend/ModuleInterfaceLoader.cpp
++++ b/lib/Frontend/ModuleInterfaceLoader.cpp
+@@ -726,21 +726,6 @@ class ModuleInterfaceLoaderImpl {
+                                   << "; deferring to serialized module loader\n");
+           UsableModulePath = adjacentMod;
+           return std::make_error_code(std::errc::not_supported);
+-        } else if (isInResourceDir(adjacentMod) &&
+-                   loadMode == ModuleLoadingMode::PreferSerialized) {
+-          // Special-case here: If we're loading a .swiftmodule from the resource
+-          // dir adjacent to the compiler, defer to the serialized loader instead
+-          // of falling back. This is mainly to support development of Swift,
+-          // where one might change the module format version but forget to
+-          // recompile the standard library. If that happens, don't fall back
+-          // and silently recompile the standard library -- instead, error like
+-          // we used to.
+-          LLVM_DEBUG(llvm::dbgs() << "Found out-of-date module in the "
+-                                     "resource-dir at "
+-                                  << adjacentMod
+-                                  << "; deferring to serialized module loader "
+-                                     "to diagnose\n");
+-          return std::make_error_code(std::errc::not_supported);
+         } else {
+           LLVM_DEBUG(llvm::dbgs() << "Found out-of-date module at "
+                                   << adjacentMod << "\n");