fix(55308) convertTypedefToType does not get's the type outside of th…

src/services/codefixes/convertTypedefToType.ts

@@ -6,6 +6,7 @@ import {
 import {
     Diagnostics,
     factory,
+    findAncestor,
     flatMap,
     getNewLineOrDefaultFromHost,
     getSynthesizedDeepClone,
@@ -122,7 +123,26 @@ function doChange(
         }
     }
 
-    changes.replaceRange(sourceFile, { pos, end }, declaration, { prefix, suffix });
+    const classParent = findAncestor(node, n => n.kind === SyntaxKind.ClassDeclaration);
+
+    if (classParent) {
+        changes.insertNodeBefore(
+            sourceFile,
+            classParent,
+            declaration,
+            /*blankLineBetween*/ false,
+        );
+        // Replace the current node with an empty line
+        changes.replaceNodeWithText(sourceFile, node, "");
+
+        // Exit the function as the changes are already applied
+        return;
+    }
+
+    changes.replaceRange(sourceFile, { pos, end }, declaration, {
+        prefix,
+        suffix,
+    });
 }
 
 function getLeftAndRightSiblings(typedefNode: JSDocTypedefTag): { leftSibling?: Node; rightSibling?: Node; } {

tests/cases/fourslash/codeFixConvertTypedefToType8.ts

@@ -0,0 +1,31 @@
+/// <reference path='fourslash.ts' />
+
+//// class Example {
+////   /**
+////    * List of items to be rendered in the bar chart
+////    * @typedef {{ count: number }} Counter
+////    * @returns {Counter}
+////    */
+////   get something() {
+////     return { count: 0 };
+////   }
+//// }
+////
+
+verify.codeFix({
+  description: ts.Diagnostics.Convert_typedef_to_TypeScript_type.message,
+  index: 0,
+  newFileContent: 
+`type Counter = { count: number; };
+class Example {
+  /**
+   * List of items to be rendered in the bar chart
+   * 
+   * @returns {Counter}
+   */
+  get something() {
+    return { count: 0 };
+  }
+}
+`,
+});