Fixed KT-5276 J2K: Convert calls to getClass() to javaClass property access

#KT-5276 Fixed

j2k/tests/testData/ast/methodCallExpression/getClass.java

@@ -0,0 +1,6 @@
+class A {
+    void foo(Object o) {
+        System.out.println(o.getClass());
+        System.out.println(getClass());
+    }
+}