code: static void quoteListenerAndHostAttributeKeys(Node objLit, AbstractCompiler compiler) {
      checkState(objLit.isObjectLit());
      for (Node keyNode : objLit.children()) {
        if (keyNode.isComputedProp()) {
          continue;
        }
        if (!keyNode.getString().equals("listeners")
            && !keyNode.getString().equals("hostAttributes")) {
          continue;
        }
        for (Node keyToQuote : keyNode.getFirstChild().children()) {
          if (!keyToQuote.isQuotedString()) {
            keyToQuote.setQuotedString();
            compiler.reportChangeToEnclosingScope(keyToQuote);
          }
        }
      }
    }
docs: Makes sure that the keys for listeners and hostAttributes blocks are quoted to avoid renaming.