fix(eslint-plugin): [no-unsafe-assignment] report on an any value assigned as an initializer of an accessor property (#10785)

* handle accessor property with no-unsafe-assignemnt

* also a valid test

Author: ronami

packages/eslint-plugin/src/rules/no-unsafe-assignment.ts

@@ -337,6 +337,16 @@ export default createRule({
     }
 
     return {
+      'AccessorProperty[value != null]'(
+        node: { value: NonNullable<unknown> } & TSESTree.AccessorProperty,
+      ): void {
+        checkAssignment(
+          node.key,
+          node.value,
+          node,
+          getComparisonType(node.typeAnnotation),
+        );
+      },
       'AssignmentExpression[operator = "="], AssignmentPattern'(
         node: TSESTree.AssignmentExpression | TSESTree.AssignmentPattern,
       ): void {

packages/eslint-plugin/tests/rules/no-unsafe-assignment.test.ts

@@ -92,6 +92,11 @@ class Foo {
     `
 class Foo {
   private a = 1;
+}
+    `,
+    `
+class Foo {
+  accessor a = 1;
 }
     `,
     'const x: Set<string> = new Set();',
@@ -203,6 +208,14 @@ class Foo {
     },
     {
       code: `
+class Foo {
+  accessor a = 1 as any;
+}
+      `,
+      errors: [{ messageId: 'anyAssignment' }],
+    },
+    {
+      code: `
 const [x] = spooky;
       `,
       errors: [