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/NotImportedProperty/NotImportedProperty.dependency.kt

@@ -0,0 +1,11 @@
+package test
+
+val globalProp1: Int = 1
+var globalProp2: Int = 2
+
+val String.globalExtensionProp: Int get() = 0
+fun String.globalExtensionFun(): Int = 0
+
+object Some {
+    var globalProp3: Int = 3
+}

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

@@ -0,0 +1,10 @@
+package pack
+
+fun testFun() {
+    gl<caret>
+}
+
+// EXIST: globalProp1, globalProp2
+// ABSENT: globalProp3
+// ABSENT: globalExtensionProp
+// ABSENT: globalExtensionFun