glsl: Propagate UBO binding qualifier into UBO member variables.
glsl: Propagate UBO binding qualifier into UBO member variables.

Without an instance name, there is no ir_variable representing the
actual uniform block declaration.  When the linker goes to set uniform
initializers, it only sees the members as ir_variables; never the block.

So, unfortunately, the members need to know about the binding.

There has to be a better way to do this.

Signed-off-by: Kenneth Graunke <bd2562f754ec92342f93f61c25d731e290a2ffa8@whitecape.org>
Reviewed-by: Paul Berry <de21b9f22e6dd0bdf7890875d6e07ef4967c44ce@gmail.com>

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