Refactored AbstractOptimizeImportsTest to inherit from AbstractImportsTest

idea/testData/editor/optimizeImports/MembersInScope.kt.after

@@ -0,0 +1,18 @@
+import Outer.C.Inner2
+
+class Outer {
+    class Nested
+
+    class C {
+        fun foo(p1: Nested, p2: ClassObjectNested, p3: Nested2) { }
+
+        inner class Inner
+        inner class Inner2
+    }
+
+    class object {
+        class ClassObjectNested
+    }
+
+    fun f(i: Inner2){}
+}