buffer size mismatch: more detail in error message

[nolanderc]

Connections
N/A

Description
In case there is a buffer size mismatch between the shader and bindings, prints both sizes in the error message.

Testing
N/A

Checklist

• Run cargo fmt.
• Run cargo clippy. If applicable, add:
  • --target wasm32-unknown-unknown
  • --target wasm32-unknown-emscripten
• Run cargo xtask test to run tests.
• Add change to CHANGELOG.md. See simple instructions inside file.

[Wumpf]

good addition, thanks!

[Wumpf]

those field names don't make sense to me. Both are sizes and not binding indices as the would names imply

Suggested change

	#[error("Buffer structure size {shader}, added to one element of an unbound array, if it's the last field, ended up greater than the given `min_binding_size`, which is {binding}")]
	WrongBufferSize {
	binding: wgt::BufferSize,
	shader: wgt::BufferSize,
	},
	#[error("Buffer structure size {structure_size}, added to one element of an unbound array, if it's the last field, ended up greater than the given `min_binding_size`, which is {min_binding_size}")]
	WrongBufferSize {
	structure_size: wgt::BufferSize,
	min_binding_size: wgt::BufferSize,
	},