introduce constant: add after dependant code (IDEA-66414)

java/java-tests/testData/refactoring/introduceConstant/ForwardReferences.java

@@ -0,0 +1,8 @@
+class Test {
+
+    public void foo(){
+        System.out.println(<selection>const1.charAt(0)</selection>);
+    }
+
+    public static final String const1 = "";
+}