tools: disable ObjC for wasm in SILFunctionExtractor

Author: MaxDesiatov

tools/sil-func-extractor/SILFunctionExtractor.cpp

@@ -249,6 +249,8 @@ int main(int argc, char **argv) {
   Invocation.getLangOptions().DisableAvailabilityChecking = true;
   Invocation.getLangOptions().EnableAccessControl = false;
   Invocation.getLangOptions().EnableObjCAttrRequiresFoundation = false;
+  if (Invocation.getLangOptions().Target.isOSBinFormatWasm())
+    Invocation.getLangOptions().EnableObjCInterop = false;
 
   serialization::ExtendedValidationInfo extendedInfo;
   llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =