Overrides completion on typing member name too

#KT-9431 Fixed

idea/idea-completion/testData/basic/common/override/InConstructorParameters2.kt

@@ -0,0 +1,19 @@
+interface I {
+    fun foo()
+    val someVal: Int
+    var someVar: Int
+}
+
+class Base1 {
+    protected open fun bar(){}
+    open val fromBase: String = ""
+}
+
+open class Base2 : Base1() {
+}
+
+class A(some<caret>) : Base2(), I
+
+// EXIST: { itemText: "override val someVal: Int", tailText: null, typeText: "I" }
+// EXIST: { itemText: "override var someVar: Int", tailText: null, typeText: "I" }
+// NOTHING_ELSE

idea/idea-completion/testData/basic/common/override/TypeFunctionName.kt

@@ -0,0 +1,22 @@
+interface I {
+    fun someFun()
+    val someVal: Int
+    var someVar: Int
+}
+
+class Base1 {
+    protected open fun bar(){}
+}
+
+open class Base2 : Base1() {
+}
+
+class A : Base2(), I {
+    so<caret>
+}
+
+// ABSENT: { itemText: "override" }
+// ABSENT: { itemText: "override fun bar() {...}" }
+// EXIST: { itemText: "override fun someFun() {...}", lookupString: "override", allLookupStrings: "override, someFun", tailText: null, typeText: "I" }
+// EXIST: { itemText: "override val someVal: Int", lookupString: "override", allLookupStrings: "override, someVal", tailText: null, typeText: "I" }
+// EXIST: { itemText: "override var someVar: Int", lookupString: "override", allLookupStrings: "override, someVar", tailText: null, typeText: "I" }