Override/Implement Members: Implement Members: Fix base member detection when abstract and non-abstract members with matching signatures are inherited from an interface

#KT-11115 Fixed
(cherry picked from commit a3a2e57)

idea/testData/codeInsight/overrideImplement/abstractAndNonAbstractInheritedFromInterface.kt

@@ -0,0 +1,11 @@
+interface T {
+    fun getFoo(): String = ""
+}
+
+interface U {
+    fun getFoo(): String
+}
+
+class C1 : T, U {
+    <caret>
+}

idea/testData/codeInsight/overrideImplement/abstractAndNonAbstractInheritedFromInterface.kt.after

@@ -0,0 +1,13 @@
+interface T {
+    fun getFoo(): String = ""
+}
+
+interface U {
+    fun getFoo(): String
+}
+
+class C1 : T, U {
+    override fun getFoo(): String {
+        <selection><caret>TODO("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
+    }
+}