Meta.parse consumes inconsistent amount of input in non-greedy mode

[c42f]

Meta.parse in non-greedy mode uses the character stream position (via io.pos in jl-parse-one), but the parser may already have read the next token using peek-token. This can cause the returned position to be inconsistent. For example:

julia> Meta.parse("x,", 1, greedy=false)
(:x, 2)

julia> Meta.parse(":,", 1, greedy=false)
(:(:), 3)  # should this be (:(:), 2) ?

I found this problem while chasing down a bug in Base.shell_parse caused by #32408.

[Moelf]

this is now fixed:

  | | |_| | | | (_| |  |  Version 1.11.0-DEV.747 (2023-10-26)
 _/ |\__'_|_|_|\__'_|  |  Commit 837522aadd (4 days old master)
|__/                   |

julia> Meta.parse("x,", 1, greedy=false)
(:x, 2)

julia> Meta.parse(":,", 1, greedy=false)
(:(:), 2)