translator: Initializers of global variables must be constant expressions

[GoogleCodeExporter]

See sections entitled 'Storage qualifiers' in all relevant ESSL specs. Right at 
the end they have language saying:

'Initializers may only be used in declarations of globals with no storage 
qualifier or with a const qualifier. Such initializers must be a constant 
expression.'

This means we should revert the logic in 
https://chromium-review.googlesource.com/243581 (issue 878) and generate errors 
instead.

Olli feel free to grab this if you're working on it.

Also see the conversation on https://github.com/KhronosGroup/WebGL/pull/940, 
for potential conflicts with existing applications.

Original issue reported on code.google.com by jmad...@chromium.org on 28 Apr 2015 at 1:56

• Blocking: #819

[GoogleCodeExporter]

Original comment by jmad...@chromium.org on 29 Apr 2015 at 2:55

• Now blocking: #819

[GoogleCodeExporter]

Issue 878 has been merged into this issue.

Original comment by jmad...@chromium.org on 29 Apr 2015 at 2:56

[GoogleCodeExporter]

Grabbing this, this needs to be fixed without removing the global init helper 
to support global short-circuiting operator unfolding.

Original comment by oetu...@nvidia.com on 12 May 2015 at 11:53

• Changed state: Started