[m-rev.] for review: Increase parallelism when making standard library .trans_opt files.

[Julien Fischer]

On Mon, 30 Jan 2023, Peter Wang wrote:

> Increase parallelism while making .trans_opt files in the library
> directory by deleting more edges in the trans-opt dependency graph.
> There are no regressions in the generated .trans_opt files.
>
> On my machine, mmake -j32 trans_opts in the library directory
> goes from 23 seconds to approximately 11 seconds.
>
> library/mer_std.trans_opt_deps_spec:
>    As above.

That's fine.

Julien.