Failure to parse some hex floats

[pfitzseb]

julia> -0x1.428a2f98d728bp+341
-5.643803094122362e102

julia> JuliaSyntax.parse(Expr, "-0x1.428a2f98d728bp+341")
ERROR: ArgumentError: cannot parse "-0x1.428a2e98d728bp+341" as Float32
Stacktrace:
  [1] _parse_failure(T::Type, s::String, startpos::Int64, endpos::Int64) (repeats 2 times)
    @ Base ./parse.jl:373
  [2] #tryparse_internal#477
    @ ./parse.jl:369 [inlined]
  [3] tryparse_internal
    @ ./parse.jl:366 [inlined]
  [4] #parse#478
    @ ./parse.jl:379 [inlined]
  [5] parse
    @ ./parse.jl:379 [inlined]
  [6] julia_string_to_number(str::SubString{String}, kind::JuliaSyntax.Kind)
    @ JuliaSyntax ~/.julia/packages/JuliaSyntax/OawBx/src/value_parsing.jl:26
  [7] JuliaSyntax.SyntaxNode(source::JuliaSyntax.SourceFile, raw::JuliaSyntax.GreenNode{JuliaSyntax.SyntaxHead}, position::UInt32)
    @ JuliaSyntax ~/.julia/packages/JuliaSyntax/OawBx/src/syntax_tree.jl:33
  [8] JuliaSyntax.SyntaxNode(source::JuliaSyntax.SourceFile, raw::JuliaSyntax.GreenNode{JuliaSyntax.SyntaxHead}, position::UInt32)
    @ JuliaSyntax ~/.julia/packages/JuliaSyntax/OawBx/src/syntax_tree.jl:89
  [9] build_tree(::Type{JuliaSyntax.SyntaxNode}, stream::JuliaSyntax.ParseStream; filename::Nothing, kws::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ JuliaSyntax ~/.julia/packages/JuliaSyntax/OawBx/src/syntax_tree.jl:189
 [10] build_tree
    @ ~/.julia/packages/JuliaSyntax/OawBx/src/syntax_tree.jl:186 [inlined]
 [11] #build_tree#90
    @ ~/.julia/packages/JuliaSyntax/OawBx/src/expr.jl:208 [inlined]
 [12] build_tree
    @ ~/.julia/packages/JuliaSyntax/OawBx/src/expr.jl:207 [inlined]
 [13] #parse#83
    @ ~/.julia/packages/JuliaSyntax/OawBx/src/parser_api.jl:124 [inlined]
 [14] parse(::Type{Expr}, input::String)
    @ JuliaSyntax ~/.julia/packages/JuliaSyntax/OawBx/src/parser_api.jl:120
 [15] top-level scope
    @ REPL[39]:1

I think we're being to eager in interpreting the f as meaning Float32 here.