- KT-1430 Import popup/type completion does not work for extension functions

- refactoring for auto import tests

idea/testData/quickfix/autoImports/functionImport.before.data.Sample.kt

@@ -0,0 +1,7 @@
+package functionimporttest.data
+
+fun String.someTestFun() {
+}
+
+fun someTestFun() {
+}