Recently the GLSL code was changed in Blender. For every GLSL file
the #line directive was added. However due to limitations in Blender
we misuse the indexed based line directive to store a hash. This is not
according to the spec where indexes should index the source inside the
array of sources. In vulkan the indexed based approach is not
'supported' as the compiler inputs only accepts a single file.
We tried to support file based approach but that lead to other issues in
renderdoc. Might be related to that the source file doesn't exist on the
file system.
This PR fixes this by scrambling the #line directive so the
step-by-step debugger can be used. The scrabling only happens when
blender is started with the `--debug-gpu-renderdoc` startup argument.
Pull Request: https://projects.blender.org/blender/blender/pulls/130458
f7fef99b31