A pass to add noalias to function arguments, when safe

[newling]

Replaces #1006. From #1006 :

Making the 'C' argument of an outlined matmul (C = A@B) function 'noalias' 
results in much faster code. It brings the outlined code's performance within a 
few percentage of the non-outlined code, for -O2. Using -O3 with outlining is 
still our fastest direct codegen approach, and the program memory usage at 
O3 is still larger than with O2, but with this change at least we can fall back 
to O2+outlining from O3+outlining without seeing as bad a drop in performance 
as before.

This new PR addresses improves #1006 by making a pass that determines when it safe to add noalias rather than expecting the user to enable/disable adding the attribute.

This new PR results in numerical failure on strix, so the pass is disables for strix for now.

[jtuyls]

Is this an issue with peano and/or chess?

[newling]

I think so, I'm trying to understand the issue. With peano.

[jtuyls]

LGTM