message: Disable ASTScopeLookup
diff: @@ -837,6 +837,9 @@ SwiftASTContext::SwiftASTContext(std::string description, llvm::Triple triple,
  : TypeSystem(TypeSystem::eKindSwift),
  m_compiler_invocation_ap(new swift::CompilerInvocation()),
  m_description(description) {
  + // rdar://53971116
  + m_compiler_invocation_ap->disableASTScopeLookup();
  +
  // Set the clang modules cache path.
  m_compiler_invocation_ap->setClangModuleCachePath(GetClangModulesCacheProperty());
  @@ -855,6 +858,9 @@ SwiftASTContext::SwiftASTContext(const SwiftASTContext &rhs)
  : TypeSystem(rhs.getKind()),
  m_compiler_invocation_ap(new swift::CompilerInvocation()),
  m_description(rhs.m_description) {
  + // rdar://53971116
  + m_compiler_invocation_ap->disableASTScopeLookup();
  +
  if (rhs.m_compiler_invocation_ap) {
  SetTriple(rhs.GetTriple());
  llvm::StringRef module_cache_path =
  