Override/Implement: Fix processing of unresolved types

#KT-17350 Fixed

idea/testData/codeInsight/overrideImplement/unresolvedType.kt

@@ -0,0 +1,8 @@
+// DISABLE-ERRORS
+interface A<in TPipeline, out TBuilder : Any, TFeature : Any> {
+    fun install(pipeline: TPipeline, configure: TBuilder.() -> Unit): TFeature
+}
+
+class X : A<String, UnresolvedType, Unit> {
+    <caret>
+}

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

@@ -0,0 +1,10 @@
+// DISABLE-ERRORS
+interface A<in TPipeline, out TBuilder : Any, TFeature : Any> {
+    fun install(pipeline: TPipeline, configure: TBuilder.() -> Unit): TFeature
+}
+
+class X : A<String, UnresolvedType, Unit> {
+    override fun install(pipeline: String, configure: UnresolvedType.() -> Unit) {
+        <selection><caret>TODO("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
+    }
+}