forked from tinygrad/tinygrad
* param + cast dtype in arg
* require dtype
* fix replace in dtype decomps
* fix x86
* dtype none is fine there
* Revert "dtype none is fine there"
This reverts commit 5315cc3e59.
Three groups of tests run in CI backend -- tests that run on each backend null -- tests that don't require any backend unit -- tests that only run on a single backend in CI