Add a "not your fault" hint to the fallback to flisp error

[LilithHafner]

Adds "This is probably not your fault, please submit a bug report (https://github.com/JuliaLang/JuliaSyntax.jl/issues)" to the long message when JuliaSytnax has an internal bug.

julia> map([3,4,5])[1] do x
┌ Error: JuliaSyntax parser failed — falling back to flisp!
│ This is probably not your fault, please submit a bug report (https://github.com/JuliaLang/JuliaSyntax.jl/issues)
│   exception =
│    Internal error: length(args) == 3
│    Stacktrace:
│      [1] error(::String, ::String)
│        @ Base ./error.jl:44
│      [2] internal_error(strs::String)
│        @ Base.JuliaSyntax /Users/julia/.julia/scratchspaces/a66863c6-20e8-4ff4-8a62-49f30b1f605e/agent-cache/default-honeycrisp-R17H3W25T9.0/build/default-honeycrisp-R17H3W25T9-0/julialang/julia-release-1-dot-10/base/JuliaSyntax/src/utils.jl:23
│      [3] _internal_node_to_Expr(source::Base.JuliaSyntax.SourceFile, srcrange::UnitRange{Int64}, head::Base.JuliaSyntax.SyntaxHead, childranges::Vector{UnitRange{Int64}}, childheads::Vector{Base.JuliaSyntax.SyntaxHead}, args::Vector{Any})
│        @ Base.JuliaSyntax /Users/julia/.julia/scratchspaces/a66863c6-20e8-4ff4-8a62-49f30b1f605e/agent-cache/default-honeycrisp-R17H3W25T9.0/build/default-honeycrisp-R17H3W25T9-0/julialang/julia-release-1-dot-10/base/JuliaSyntax/src/expr.jl:399
│      [4] _to_expr(node::Base.JuliaSyntax.SyntaxNode)
│        @ Base.JuliaSyntax /Users/julia/.julia/scratchspaces/a66863c6-20e8-4ff4-8a62-49f30b1f605e/agent-cache/default-honeycrisp-R17H3W25T9.0/build/default-honeycrisp-R17H3W25T9-0/julialang/julia-release-1-dot-10/base/JuliaSyntax/src/expr.jl:496
│      [5] _to_expr(node::Base.JuliaSyntax.SyntaxNode) (repeats 2 times)
│        @ Base.JuliaSyntax /Users/julia/.julia/scratchspaces/a66863c6-20e8-4ff4-8a62-49f30b1f605e/agent-cache/default-honeycrisp-R17H3W25T9.0/build/default-honeycrisp-R17H3W25T9-0/julialang/julia-release-1-dot-10/base/JuliaSyntax/src/expr.jl:495
│      [6] Expr(node::Base.JuliaSyntax.SyntaxNode)
│        @ Base.JuliaSyntax /Users/julia/.julia/scratchspaces/a66863c6-20e8-4ff4-8a62-49f30b1f605e/agent-cache/default-honeycrisp-R17H3W25T9.0/build/default-honeycrisp-R17H3W25T9-0/julialang/julia-release-1-dot-10/base/JuliaSyntax/src/expr.jl:500
│      [7] core_parser_hook(code::String, filename::String, lineno::Int64, offset::Int64, options::Symbol)
│        @ Base.JuliaSyntax ./REPL[6]:72
│      [8] invoke_in_world(::UInt64, ::Any, ::Any, ::Vararg{Any}; kwargs::@Kwargs{})
│        @ Base ./essentials.jl:921
│      [9] invoke_in_world(::UInt64, ::Any, ::Any, ::Vararg{Any})
│        @ Base ./essentials.jl:918
│     [10] (::Base.JuliaSyntax.var"#invoke_fixedworld#120"{Base.JuliaSyntax.var"#invoke_fixedworld#117#121"{typeof(Base.JuliaSyntax.core_parser_hook), UInt64}})(::String, ::Vararg{Any}; kws::@Kwargs{})
│        @ Base.JuliaSyntax /Users/julia/.julia/scratchspaces/a66863c6-20e8-4ff4-8a62-49f30b1f605e/agent-cache/default-honeycrisp-R17H3W25T9.0/build/default-honeycrisp-R17H3W25T9-0/julialang/julia-release-1-dot-10/base/JuliaSyntax/src/hooks.jl:118
│     [11] (::Base.JuliaSyntax.var"#invoke_fixedworld#120"{Base.JuliaSyntax.var"#invoke_fixedworld#117#121"{typeof(Base.JuliaSyntax.core_parser_hook), UInt64}})(::String, ::Vararg{Any})
│        @ Base.JuliaSyntax /Users/julia/.julia/scratchspaces/a66863c6-20e8-4ff4-8a62-49f30b1f605e/agent-cache/default-honeycrisp-R17H3W25T9.0/build/default-honeycrisp-R17H3W25T9-0/julialang/julia-release-1-dot-10/base/JuliaSyntax/src/hooks.jl:117
│     [12] _parse_string(text::String, filename::String, lineno::Int64, index::Int64, options::Symbol)
│        @ Base.Meta ./meta.jl:200
│     [13] #parseall#6
│        @ Base.Meta ./meta.jl:294 [inlined]
│     [14] parseall
│        @ Base.Meta ./meta.jl:293 [inlined]
│     [15] _parse_input_line_core
│        @ Base ./client.jl:174 [inlined]
│     [16] #parse_input_line#1007
│        @ Base ./client.jl:192 [inlined]
│     [17] parse_input_line
│        @ Base ./client.jl:189 [inlined]
│     [18] (::REPL.var"#93#103"{REPL.LineEditREPL, REPL.REPLHistoryProvider})(x::Any)
│        @ REPL ~/.julia/juliaup/julia-1.10.0-beta2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/REPL/src/REPL.jl:1077
│     [19] #invokelatest#2
│        @ Base ./essentials.jl:887 [inlined]
│     [20] invokelatest
│        @ Base ./essentials.jl:884 [inlined]
│     [21] (::REPL.var"#do_respond#80"{Bool, Bool, REPL.var"#93#103"{REPL.LineEditREPL, REPL.REPLHistoryProvider}, REPL.LineEditREPL, REPL.LineEdit.Prompt})(s::REPL.LineEdit.MIState, buf::Any, ok::Bool)
│        @ REPL ~/.julia/juliaup/julia-1.10.0-beta2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/REPL/src/REPL.jl:903
│     [22] #invokelatest#2
│        @ Base ./essentials.jl:887 [inlined]
│     [23] invokelatest
│        @ Base ./essentials.jl:884 [inlined]
│     [24] run_interface(terminal::REPL.Terminals.TextTerminal, m::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
│        @ REPL.LineEdit ~/.julia/juliaup/julia-1.10.0-beta2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/REPL/src/LineEdit.jl:2656
│     [25] run_frontend(repl::REPL.LineEditREPL, backend::REPL.REPLBackendRef)
│        @ REPL ~/.julia/juliaup/julia-1.10.0-beta2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/REPL/src/REPL.jl:1310
│     [26] (::REPL.var"#62#68"{REPL.LineEditREPL, REPL.REPLBackendRef})()
│        @ REPL ~/.julia/juliaup/julia-1.10.0-beta2+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/REPL/src/REPL.jl:386
│   offset = 0
│   code = "map([3,4,5])[1] do x"
└ @ Base.JuliaSyntax REPL[6]:121
ERROR: syntax: extra token "do" after end of expression
Stacktrace:
 [1] top-level scope
   @ none:1

From @topolarity and @vchuravy 's commentary here https://github.com/JuliaLang/JuliaSyntax.jl/issues/340

[codecov[bot]]

Codecov Report

Merging #358 (e621db4) into main (a57f093) will decrease coverage by 0.80%. Report is 2 commits behind head on main. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #358      +/-   ##
==========================================
- Coverage   96.56%   95.76%   -0.80%     
==========================================
  Files          14       13       -1     
  Lines        4161     3895     -266     
==========================================
- Hits         4018     3730     -288     
- Misses        143      165      +22     

Files	Coverage Δ
src/hooks.jl	80.92% <0.00%> (-2.12%)	:arrow_down:

... and 13 files with indirect coverage changes

[PallHaraldsson]

How about "This is not your fault" (i.e. needing to send a bug report)? JuliaSyntax.jl should parse legal, and all illegal code, so it's never the users fault?! Though if illegal could have gotten an ERROR message from JuliaSyntax.jl, and then in that sense the users fault.

[LilithHafner]

Lovely, let's do this! I'd use a triple quoted string rather than * but either way :-)

Agreed, triple quoted is better.

@PallHaraldsson I don't understand what you're saying. Yes, JuliaSyntax should be able to handle any input string, legal or illegal, but like all nontrivial software, JuliaSyntax has bugs. This PR improves the user experience when folks hit those bugs and encourage them to report the bugs they hit so we can fix them.

[PallHaraldsson]

Yes it has bugs, and we want them reported, but with "probably" it seems like you're blaming the user for that. It didn't seem necessary. I want an error/clarification, just thought the wording could be adjusted.