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/handlers/DoNotInsertImportIfResolvedIntoJavaConstructor.kt

@@ -0,0 +1,3 @@
+fun main(args: Array<String>) {
+    throw IllegalAccessExceptio<caret> //Press Ctrl+Space and select it
+}