[fpc-pascal] IsValidIdent() with dots

[Juha Manninen]

Hi

Is there a function like IsValidIdent but accepting also dots (.),
as in name "TForm1.Action1Execute"?

While fixing a bug:
  http://bugs.freepascal.org/view.php?id=25954
I copied and modified IsValidIdent.
It was easy to do, sure, but I would prefer to reuse an existing
function especialy because this looks like a common use case.

Codetools has a suitable IsDottedIdentifier() but I need it in IDEIntf
code which must not depend on Codetools.

Juha