Meta.parse fails to parse with 2 or more trailing newlines

[MichaelHatherly]

This appears to be a regression in Meta.parse. On current stable release we have:

julia> VERSION
v"1.11.3"

julia> Meta.parse("1\n\n")
1

julia> Meta.parse("1\n")
1

On a recent nightly it throws when there is more than one newline:

julia> VERSION
v"1.13.0-DEV.26"

julia> Meta.parse("1\n\n")
ERROR: ParseError("extra token after end of expression")
Stacktrace:
 [1] parse(str::String; filename::String, raise::Bool, depwarn::Bool)
   @ Base.Meta ./meta.jl:283
 [2] parse(str::String)
   @ Base.Meta ./meta.jl:276
 [3] top-level scope
   @ REPL[17]:1

julia> Meta.parse("1\n")
1

[vtjnash]

This should probably move to JuliaSyntax.jl, but I am not sure how that interacts with trying to have things on the v1.12 milestone also for tracking purposes.