Add more tests to api validation testing

[christiangnrd]

Not worth running a test we know will fail with only one apple silicon runner.

[christiangnrd]

Right this is still broken on Ventura. I'll split up the PR into what will pass CI now and what can wait.

[christiangnrd]

All tests can now be run with the shader validation enabled except for device_code_agx for which I've opened #463!

[maleadt]

At some point we should device and audit whether to check for non-zero length as part of each API call (e.g., unsafe_fill! here), or only from the high-level caller. It's a bit messy to have these N > 0 calls all over the place. For fill!, the high-level caller already does so:

Metal.jl/src/array.jl

Lines 534 to 540 in 711758d

	function Base.fill!(A::MtlArray{T}, val) where T <: Union{UInt8,Int8}
	if length(A) > 0
	B = convert(T, val)
	unsafe_fill!(device(A), pointer(A), B, length(A))
	end
	A
	end

[christiangnrd]

At some point we should device and audit whether to check for non-zero length as part of each API call (e.g., unsafe_fill! here), or only from the high-level caller. It's a bit messy to have these N > 0 calls all over the place. For fill!, the high-level caller already does so:

Metal.jl/src/array.jl

Lines 534 to 540 in 711758d

	function Base.fill!(A::MtlArray{T}, val) where T <: Union{UInt8,Int8}
	if length(A) > 0
	B = convert(T, val)
	unsafe_fill!(device(A), pointer(A), B, length(A))
	end
	A
	end

That's from a recent PR where I tried to address some validation errors. I can remove the high-level change since it wasn't enough and leave the low-level one in #464