Replacing all instances (2) of dom Map key spreading; using has method instead

Author: jessebeach

src/rules/scope.js

@@ -33,7 +33,7 @@ module.exports = {
 
       // Do not test higher level JSX components, as we do not know what
       // low-level DOM element this maps to.
-      if ([...dom.keys()].indexOf(tagName) === -1) {
+      if (!dom.has(tagName)) {
         return;
       } else if (tagName && tagName.toUpperCase() === 'TH') {
         return;

src/util/isNonInteractiveRole.js

@@ -40,7 +40,7 @@ const isNonInteractiveRole = (
 ): boolean => {
   // Do not test higher level JSX components, as we do not know what
   // low-level DOM element this maps to.
-  if ([...dom.keys()].indexOf(tagName) === -1) {
+  if (!dom.has(tagName)) {
     return false;
   }