Created module idea-test-framework and moved classes needed for idea tests there

Moved tests for completion and their test data into module idea-completion

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

@@ -0,0 +1,16 @@
+package test
+
+object NamedObjectTopLevel1
+object NamedObjectTopLevel2
+
+fun some() {
+  object NamedObjectInFun
+}
+
+class Some {
+  companion object {
+    object NamedObjectInClassObject
+  }
+}
+
+// ALLOW_AST_ACCESS

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

@@ -0,0 +1,8 @@
+package first
+
+fun testFun() {
+    NamedObject<caret>
+}
+
+// EXIST: NamedObjectTopLevel1, NamedObjectTopLevel2, NamedObjectInClassObject
+// ABSENT: NamedObjectInFun