@NotNull
  private PsiElement replaceOccurrence(@NotNull GrVariable field, @NotNull PsiElement occurrence, @NotNull PsiClass containingClass) {
    boolean isOriginal = occurrence == myContext.getExpression();
    final GrReferenceExpression newExpr = createRefExpression(field, occurrence, containingClass);
    final PsiElement replaced;
    if (occurrence instanceof GrExpression) {
      replaced = ((GrExpression)occurrence).replaceWithExpression(newExpr, false);
    }
    else {
      replaced = occurrence.replace(newExpr);
    }

    if (replaced instanceof GrQualifiedReference<?>) {
      GrReferenceAdjuster.shortenReference((GrQualifiedReference<?>)replaced);
    }
    if (isOriginal) {
      updateCaretPosition(replaced);
    }
    return replaced;
  }
@NotNull
  private PsiElement replaceOccurrence(@NotNull GrVariable field, @NotNull PsiElement occurrence, @NotNull PsiClass containingClass)