fix(39440): show QF for abstract classes with methods which include 'this' parameter (#39465)

tests/cases/fourslash/codeFixAmbientClassExtendAbstractMethod.ts

@@ -5,19 +5,27 @@
 ////    abstract f(a: number, b: string): this;
 ////    abstract f(a: string, b: number): Function;
 ////    abstract f(a: string): Function;
+////
+////    abstract f1(this: A): number;
+////    abstract f2(this: A, a: number, b: string): number;
+////
 ////    abstract foo(): number;
 ////}
 ////
 ////declare class C extends A {}
 
 verify.codeFix({
-    description: "Implement inherited abstract class",
+    description: ts.Diagnostics.Implement_inherited_abstract_class.message,
     newFileContent:
 `abstract class A {
     abstract f(a: number, b: string): boolean;
     abstract f(a: number, b: string): this;
     abstract f(a: string, b: number): Function;
     abstract f(a: string): Function;
+
+    abstract f1(this: A): number;
+    abstract f2(this: A, a: number, b: string): number;
+
     abstract foo(): number;
 }
 
@@ -26,6 +34,8 @@ declare class C extends A {
     f(a: number, b: string): this;
     f(a: string, b: number): Function;
     f(a: string): Function;
+    f1(this: A): number;
+    f2(this: A, a: number, b: string): number;
     foo(): number;
 }`
 });