Should const $x = $y match const ($x = $y) and vice versa?

[quasilyte]

Right now it does.
But I think it shouldn't.

Caveat: if we make it non-matching, this pattern should become compileable var ($*_; $v = $_; $*_).
Right now it will fail to compile as it forms an AST that can't be parsed by go/parser.

I'm attaching a patch that could be used as a reference for gendecl () aware matching implementation.

patch.txt