@Nullable
  public static PsiElement findPropertyValue(@NotNull Project project, @NotNull VirtualFile file, @NotNull String propName) {
    IProperty prop = findProperty(project, file, propName);
    return prop == null ? null : prop.getPsiElement().getFirstChild().getNextSibling().getNextSibling();
  }
@Nullable
  public static PsiElement findPropertyValue(@NotNull Project project, @NotNull VirtualFile file, @NotNull String propName)