Smart completion: inheritors instantiation suggested + fixed a bug with incorrect presentation of generic java class instantiation

idea/testData/completion/smartMultiFile/GenericInheritors3/GenericInheritors3.kt

@@ -0,0 +1,8 @@
+import p.*
+
+fun foo(): KotlinTrait<I1, I2> {
+    return <caret>
+}
+
+// EXIST: { lookupString: "object", itemText: "object: KotlinTrait<I1, I2>{...}" }
+// ABSENT: KotlinInheritor

idea/testData/completion/smartMultiFile/GenericInheritors3/KotlinInheritors.kt

@@ -0,0 +1,11 @@
+package p
+
+trait I1
+trait I2
+trait I3
+
+trait KotlinTrait<T1, T2>
+
+class KotlinInheritor<T> : KotlinTrait<T, T>
+
+// ALLOW_AST_ACCESS