Some docs for .perl state exact string values, but shouldn't

[zoffixznet]

The value returned from .perl is meant to be .EVALable back to an equivalent object. However, the exact structure of the returned string is implementation-dependent.

The docs for .perl state that fact in Mu.perl, however, other entries, like Complex.perl and Rat.perl go on into detailed description of what the value is, but they shouldn't.

They also use the phrase val()-based. I think that should be removed too and the author of that text likely confused the Complex/Rat literal syntax <1+42i>/<1/2> with the quote-word allomorph constructor < 1/2>/< 1+42i> (the latter requires at least some whitespace inside)