[HarfBuzz] dotted circle is not appearing for dependant vowel

[Behdad Esfahbod]

On 07/24/2012 11:36 AM, Harshula wrote:
> 4) So, how do we move forward? Can we suppress the dotted circle by
> including some special Unicode codepoint before the dependent vowel? I
> want the dotted circle to be the default and have an option to suppress
> it when required.

You can use a base of NBSP.  We support that already.

behdad