Refactor DelegationResolver

Fix an issue in lazy resolve : filter out methods from delegated traits superclass

compiler/testData/loadKotlin/fun/NoDelegationForFunctionInheritedFromTraitSuperClass.kt

@@ -0,0 +1,23 @@
+package test
+
+abstract class A {
+    abstract fun foo()
+}
+
+trait X : A {
+    fun bar() {
+    }
+}
+
+open class B() : A() {
+    override fun foo() {
+    }
+}
+
+class C() : A(), X {
+    override fun foo() {
+    }
+}
+
+class D(val c: C) : B(), X by c {
+}