Add failing test case.

tests/cases/fourslash/completionsInClassInheritingGetterAndSetter01.ts

@@ -0,0 +1,26 @@
+
+/// <reference path="./fourslash.ts" />
+
+////declare class GetterFirst {
+////    get mask(): any;
+////    set mask(value: any);
+////}
+////export class A extends GetterFirst {
+////    /*A*/
+////}
+////
+////declare class SetterFirst {
+////    set mask(value: any);
+////    get mask(): any;
+////}
+////export class B extends SetterFirst {
+////    /*B*/
+////}
+
+for (const marker of test.markers()) {
+    goTo.marker(marker);
+    verify.baselineCompletions({
+        includeCompletionsWithInsertText: true,
+        includeCompletionsWithClassMemberSnippets: true
+    });
+}