move members: qualify moved string switch labels on constant move (IDEA-109272)

java/java-tests/testData/refactoring/moveMembers/stringConstantFromCaseStatement/after/A.java

@@ -0,0 +1,3 @@
+public class A {
+    public static final String ONE = "";
+}

java/java-tests/testData/refactoring/moveMembers/stringConstantFromCaseStatement/after/B.java

@@ -0,0 +1,8 @@
+public class B {
+    void foo(String s) {
+        switch (i) {
+            case A.ONE :
+              break;
+        }
+    }
+}