[PATCHJ] Fix for diagnosing half pointers/arrays

[John McCall]

On Feb 11, 2013, at 6:14 AM, Joey Gouly <joey.gouly at arm.com> wrote:
> Hi John,
>> Just check whether the lvalue expression's type isHalfType() instead
>> of trying to enumerate all the syntactic cases that can give rise to it.
> Thanks. Please find a revised patch.
> 
> I also removed the opencl_cast_from_half diagnostic, since there isn't a
> valid case
> for "(float) expr", where expr would yield a half.
> 
> Any more comments?

I've tweaked the message and committed this as r174928.

You seem to not be diagnosing assignments to half l-values;  I've left
a diagnostic in there for this purpose.  The thing to do is to return the
appropriate AssignConvertType in CheckAssignmentConstraints and
report the error in DiagnoseAssignmentResult.

John.