warning on hidden imports

compiler/testData/diagnostics/tests/scopes/Imports-hidden.jet

@@ -0,0 +1,45 @@
+//FILE:a.kt
+package a
+
+import <!USELESS_HIDDEN_IMPORT!>b.a<!>
+import c.a
+import <!USELESS_SIMPLE_IMPORT!>b<!>
+
+import b.bar
+import c.foo
+import b.foo
+
+import A as ER
+import <!USELESS_SIMPLE_IMPORT!>B<!>
+
+class A() {}
+object B {}
+
+//FILE:b.kt
+package b
+
+object a {}
+
+class B() {
+    class object {
+        object O {}
+    }
+}
+
+fun foo() {}
+fun bar() {}
+
+//FILE:c.kt
+package c
+
+fun a() {}
+
+object a {}
+
+class C() {
+    class object {
+        object O {}
+    }
+}
+
+fun foo() {}