public static boolean isFieldEquivalentTo(@NotNull PsiField field, PsiElement another) {
if (!(another instanceof PsiField)) return false;
String name1 = field.getName();
if (name1 == null) return false;
if (!another.isValid()) return false;
String name2 = ((PsiField) another).getName();
if (!name1.equals(name2)) return false;
PsiClass aClass1 = field.getContainingClass();
PsiClass aClass2 = ((PsiField) another).getContainingClass();
return aClass1 != null
&& aClass2 != null
&& field.getManager().areElementsEquivalent(aClass1, aClass2);
}
