private static boolean isOnExpressionOrReturnPlace(@NotNull GrCallExpression call) {
    PsiElement parent = call.getParent();
    if (!(parent instanceof GrVariableDeclarationOwner owner)) {
      return true;
    }

    // tail calls in methods and closures
    if (owner instanceof GrClosableBlock ||
        owner instanceof GrOpenBlock && owner.getParent() instanceof GrMethod) {
      GrStatement[] statements = ((GrCodeBlock) owner).getStatements();
      assert statements.length > 0;
      GrStatement last = statements[statements.length - 1];
      if (last == call) return true;
      if (last instanceof GrReturnStatement && call == ((GrReturnStatement) last).getReturnValue()) {
        return true;
      }
    }
    return false;
  }
private static boolean isOnExpressionOrReturnPlace(@NotNull GrCallExpression call)