Intentions: 'Implement abstract member' (Kotlin -> Java)

#KT-8467 Fixed

idea/testData/multiFileIntentions/implementAbstractMember/implementValInJava/before/source/inheritors.java

@@ -0,0 +1,20 @@
+package source;
+
+abstract class X<S> implements T<S> {
+
+}
+
+class Y implements T<String> {
+
+}
+
+class Z implements T<Boolean> {
+    @Override
+    public Boolean getFoo() {
+        return null;
+    }
+}
+
+interface U extends T<Object> {
+
+}

idea/testData/multiFileIntentions/implementAbstractMember/implementValInJava/before/source/test.kt

@@ -0,0 +1,5 @@
+package source
+
+interface T<X> {
+    val <caret>foo: X
+}