18b5b0812b
This PR improves the place when shader stages are attached to glPrograms. Previously it was done when shaders stages where created, in the function create_shader_stage. This PR will attach the shader stages inside link program. Ensuring that create_shader_stage doesn't alter the program, which isn't clear in its name. Pull Request: https://projects.blender.org/blender/blender/pulls/117407