@Nullable
  public static PsiType sameType(PsiExpression @NotNull [] expressions) {
    PsiType type = null;
    for (PsiExpression expression : expressions) {
      PsiType currentType;
      if (expression instanceof PsiArrayInitializerExpression) {
        currentType = getArrayInitializerType((PsiArrayInitializerExpression)expression);
      }
      else {
        currentType = expression.getType();
      }
      if (type == null) {
        type = currentType;
      }
      else if (!type.equals(currentType)) {
        return null;
      }
    }
    return type;
  }
@Nullable
  public static PsiType sameType(PsiExpression @NotNull [] expressions)