I'll post a corrected patch shortly, but first some answer to questions:

> Have you found an application that wants these extensions? That might
> be useful to describe in the commit message.

There are some occasional bits in Qt that uses HALF_FLOAT_OES for GLES2 (but I 
stress it is not a often hit code path), many forms of GPU font rendering also 
require floating point textures (to which I confess implementing in a public 
open source project). As for specific applications: I do not have a list. 

> For which driver would that be useful?

The truth right now is the for the current Mesa DRI drivers: I think none, the 
reason being that Mesa drivers are -mostly- either newer hardware OR if older 
-desktop- hardware. The extensions made them all separate to let an 
implementation expose more by requiring less. As for hardware out there is the 
wild, I -suspect- not anyways.

-Kevin

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