Merge pull request #38660 from apple/disable-refactoring-availability-checking

[Refactoring] Disable availability checking to reduce errors

Author: bnbarham

tools/swift-refactor/swift-refactor.cpp

@@ -294,6 +294,7 @@ int main(int argc, char *argv[]) {
   Invocation.getLangOptions().AttachCommentsToDecls = true;
   Invocation.getLangOptions().CollectParsedToken = true;
   Invocation.getLangOptions().BuildSyntaxTree = true;
+  Invocation.getLangOptions().DisableAvailabilityChecking = true;
 
   if (options::EnableExperimentalConcurrency)
     Invocation.getLangOptions().EnableExperimentalConcurrency = true;