Add tests for every builtin

[khyperia]

In discord, it was pointed out that #[spirv(workgroup_size)] is broken - the decoration applies to a constant, not a variable, and it specifies the workgroup size, it's not provided with the workgroup size. (A subsequent discussion also showed that WorkgroupSize in SPIR-V is just plain broken with multi-entry-point shaders - but the LocalSize(Id) execution mode is a replacement for its behavior)

So, I decided to add a test for every builtin, to make sure nothing else is broken! turns out bool builtins are broken, I'll file a follow-up issue, and we had a fair amount of Kernel-only builtins which shouldn't be included.

Also, fixed a typo with layer_per_view_nv, and fixed opengl4.5 targeting SPIR-V 1.3 - spirv-val complains when trying to build with env opengl4.5, it's required to be 1.0.

Unfortunately, the test can't actually be added to CI, because compiletests is broken. Either @eddyb or I will hopefully be filing a fix soon. (both // ignore-vulkan1.1 and // only-vulkan1.1 are broken)