Callable reference completion for non-imported callables

idea/idea-completion/testData/basic/multifile/CallableReferenceNotImported/CallableReferenceNotImported.dependency.kt

@@ -0,0 +1,9 @@
+package dependency
+
+fun CharSequence.extFun(){}
+
+fun Int.wrongExtFun(){}
+
+fun topLevelFun(){}
+
+val topLevelVal: Int = 1

idea/idea-completion/testData/basic/multifile/CallableReferenceNotImported/CallableReferenceNotImported.kt

@@ -0,0 +1,9 @@
+fun String.foo() {
+    val v = ::<caret>
+}
+
+// INVOCATION_COUNT: 2
+// EXIST: extFun
+// EXIST: topLevelFun
+// EXIST: topLevelVal
+// ABSENT: wrongExtFun