@NotNull
  public static GrStatement getAnchor(PsiElement @NotNull [] occurrences, @NotNull PsiElement scope) {
    PsiElement parent = PsiTreeUtil.findCommonParent(occurrences);
    PsiElement container = getEnclosingContainer(parent);
    assert container != null;
    PsiElement anchor = findAnchor(occurrences, container);

    assertStatement(anchor, scope);
    return (GrStatement)anchor;
  }
@NotNull
  public static GrStatement getAnchor(PsiElement @NotNull [] occurrences, @NotNull PsiElement scope)