Analyze ClassAccessorProperty to prevent the no-undef rule (babel…

…#16884)

* Analyze `ClassAccessorProperty` to prevent the `no-undef` rule

a.js:

```js
class A {
  accessor b;
}
```

Current and expected behavior:

```bash
npx eslint a.js
```

```
a.js
  2:11  error  'b' is not defined  no-undef

✖ 1 problem (1 error, 0 warnings)
```

* add class accessor tests

* fix typo in article

eslint/babel-eslint-parser/src/analyze-scope.cts

@@ -187,6 +187,10 @@ class Referencer extends OriginalReferencer {
     this._visitClassProperty(node);
   }
 
+  ClassAccessorProperty(node: any) {
+    this._visitClassProperty(node);
+  }
+
   PropertyDefinition(node: any) {
     this._visitClassProperty(node);
   }

eslint/babel-eslint-tests/test/integration/eslint/verify.js

@@ -1837,6 +1837,41 @@ describe("verify", () => {
       });
     });
 
+    describe("accessor declarations", () => {
+      it("should not be undefined", () => {
+        verifyAndAssertMessages(
+          `
+              class C {
+                accessor d = 1;
+              }
+          `,
+          { "no-undef": 1 },
+        );
+      });
+
+      it("should not be unused", () => {
+        verifyAndAssertMessages(
+          `
+              export class C {
+                accessor d = 1;
+              }
+          `,
+          { "no-unused-vars": 1 },
+        );
+      });
+
+      it("no-use-before-define allows referencing the class in an accessor", () => {
+        verifyAndAssertMessages(
+          `
+            class C {
+              accessor d = C.name;
+            }
+          `,
+          { "no-use-before-define": 1 },
+        );
+      });
+    });
+
     describe("private methods", () => {
       it("should not be undefined", () => {
         verifyAndAssertMessages(