Added back a few test cases

Author: JoshuaKGoldberg

tests/cases/fourslash/codeFixClassExtendAbstractPrivateProperty.ts

@@ -1,5 +1,6 @@
 /// <reference path='fourslash.ts' />
 
+// @noImplicitOverride: true
 //// abstract class A {
 ////    private abstract x: number;
 ////    m() { this.x; } // Avoid unused private

tests/cases/fourslash/codeFixClassExtendAbstractProperty.ts

@@ -1,5 +1,6 @@
 /// <reference path='fourslash.ts' />
 
+// @noImplicitOverride: true
 ////abstract class A {
 ////    abstract x: number;
 ////    abstract y: this;
@@ -18,8 +19,8 @@ verify.codeFix({
 }
 
 class C extends A {
-    x: number;
-    y: this;
-    z: A;
+    override x: number;
+    override y: this;
+    override z: A;
 }`
 });

tests/cases/fourslash/codeFixClassExtendAbstractPropertyThis.ts

@@ -1,5 +1,6 @@
 /// <reference path='fourslash.ts' />
 
+// @noImplicitOverride: true
 ////abstract class A {
 ////    abstract x: this;
 ////}
@@ -14,6 +15,6 @@ verify.codeFix({
 }
 
 class C extends A {
-    x: this;
+    override x: this;
 }`,
 });

tests/cases/fourslash/codeFixClassExtendAbstractProtectedProperty.ts

@@ -1,5 +1,6 @@
 /// <reference path='fourslash.ts' />
 
+// @noImplicitOverride: true
 ////abstract class A {
 ////    protected abstract x: number;
 ////}
@@ -14,6 +15,6 @@ verify.codeFix({
 }
 
 class C extends A {
-    protected x: number;
+    protected override x: number;
 }`,
 });

tests/cases/fourslash/codeFixClassExtendAbstractPublicProperty.ts

@@ -1,5 +1,6 @@
 /// <reference path='fourslash.ts' />
 
+// @noImplicitOverride: true
 ////abstract class A {
 ////    public abstract x: number;
 ////}
@@ -14,6 +15,6 @@ verify.codeFix({
 }
 
 class C extends A {
-    public x: number;
+    public override x: number;
 }`,
 });

tests/cases/fourslash/codeFixClassExtendAbstractSomePropertiesPresent.ts

@@ -1,5 +1,6 @@
 /// <reference path='fourslash.ts' />
 
+// @noImplicitOverride: true
 //// abstract class A {
 ////    abstract x: number;
 ////    abstract y: number;
@@ -12,5 +13,5 @@
 //// }
 
 verify.rangeAfterCodeFix(`
-z: number;
+override z: number;
 `);