KT-7135 Java to Kotlin converter should update usages in Java and Koltin code in the rest of the project

#KT-7135 Fixed

j2k/testData/multiFile/ToObject/PureUtils.java

@@ -0,0 +1,6 @@
+package test;
+
+class PureUtils {
+    public static void foo1(int p) {}
+    public static int foo2() { return 1; }
+}