fix(no-identical-title): always consider .each titles unique (#910)

Author: G-Rath

src/rules/__tests__/no-identical-title.test.ts

@@ -124,12 +124,12 @@ ruleTester.run('no-identical-title', rule, {
     dedent`
       describe.each\`
         description
-        ${'b'}
+        $\{'b'}
       \`('$description', () => {});
 
       describe.each\`
         description
-        ${'a'}
+        $\{'a'}
       \`('$description', () => {});
     `,
     dedent`
@@ -141,6 +141,16 @@ ruleTester.run('no-identical-title', rule, {
         describe('nested', () => {});
       });
     `,
+    dedent`
+      describe.each\`\`('my title', value => {});
+      describe.each\`\`('my title', value => {});
+      describe.each([])('my title', value => {});
+      describe.each([])('my title', value => {});
+    `,
+    dedent`
+      describe.each([])('when the value is %s', value => {});
+      describe.each([])('when the value is %s', value => {});
+    `,
   ],
   invalid: [
     {

src/rules/no-identical-title.ts

@@ -1,6 +1,6 @@
-import { AST_NODE_TYPES } from '@typescript-eslint/experimental-utils';
 import {
   createRule,
+  getNodeName,
   getStringValue,
   isDescribeCall,
   isStringNode,
@@ -46,7 +46,7 @@ export default createRule({
           contexts.push(newDescribeContext());
         }
 
-        if (node.callee.type === AST_NODE_TYPES.TaggedTemplateExpression) {
+        if (getNodeName(node.callee)?.endsWith('.each')) {
           return;
         }