IC: Add IC test with fix on rename file with only class inside

"fails" on JS and JPS tests - the IC logic there is less precise.

jps/jps-plugin/testData/incremental/pureKotlin/renameFileWithClassesOnly/useA.kt

@@ -0,0 +1,7 @@
+package use
+
+import foo.*
+
+fun useA() {
+    A(1)
+}