IDEA-57403 Completion cannot suggest members of an intersection type

java/java-tests/testData/codeInsight/completion/normal/IntersectionTypeMembers.java

@@ -0,0 +1,18 @@
+interface IA{
+    void fooa();
+}
+
+interface IB{
+    void foob();
+}
+
+interface IC<T extends IA>{
+    T c();
+}
+
+class K {
+    void foo(IC<? extends IB> x){
+        x.c().fo<caret>
+
+    }
+}