[WebGPU] Parse literal integer/floats as AbstractInt/AbstractFloat
Pull request: https://github.com/WebKit/WebKit/pull/1621
<rdar://problem/95925953>
Committed 252060@main (6559f40a2d93): <https://commits.webkit.org/252060@main> Reviewed commits have been landed. Closing PR #1621 and removing active labels.