04-turn-on-interface-compilation-fallback-on-stdlib.patch

Remove block of code that is turning off auto-compilation of stdlib `.swiftinterface`
files.

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 "Found out-of-date module in the "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 "Found out-of-date module at "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");