Star projection information preserved in substitutions

#KT-6700 Fixed

idea/testData/codeInsight/overrideImplement/starProjections.kt

@@ -0,0 +1,9 @@
+class C<T : C<T>>
+
+trait Base {
+    fun foo(c: C<*>)
+}
+
+class Derived : Base {
+    <caret>
+}

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

@@ -0,0 +1,11 @@
+class C<T : C<T>>
+
+trait Base {
+    fun foo(c: C<*>)
+}
+
+class Derived : Base {
+    override fun foo(c: C<*>) {
+        <selection><caret>throw UnsupportedOperationException()</selection>
+    }
+}