It is now supported by the MATLAB editor (as of R2022a).
The old ASCII notation is left in some files that we copy as-is from other
sources (e.g. in the contrib/ and m4/ subdirectories).
The particles submodule is not updated at this point, because it is in an
inconsistent state.
[skip ci]
Accordingly update the MATLAB routines, the testsuite, and the manual.
In particular, “squeeze_shock_decomp” has been renamed to
“squeeze_shock_decomposition” for consistency with other commands.
Ref. #1687, !1655