inaccurate line numbers in syntax errors

[stevengj]

julia> softscope_include_string(Main, "begin\n3\nx ++++ y\nend")
ERROR: LoadError: syntax: "++" is not a unary operator
Stacktrace:
 [1] softscope_include_string(::Module, ::String, ::String) at /Users/stevenj/.julia/dev/SoftGlobalScope/src/SoftGlobalScope.jl:201
 [2] softscope_include_string(::Module, ::String) at /Users/stevenj/.julia/dev/SoftGlobalScope/src/SoftGlobalScope.jl:192
 [3] top-level scope at none:0
in expression starting at string:1

julia> include_string(Main, "begin\n3\nx ++++ y\nend")
ERROR: LoadError: syntax: "++" is not a unary operator
Stacktrace:
 [1] include_string(::Module, ::String, ::String) at ./loading.jl:1002
 [2] include_string(::Module, ::String) at ./loading.jl:1006
 [3] top-level scope at none:0
in expression starting at string:3

Notice that we are giving the syntax error at string:1 rather than at string:3.

[stevengj]

In contrast, line numbers for ordinary exceptions seem to be tracked correctly, e.g. giving string:3 here:

julia> include_string(Main, "begin\n3\nerror(1)\nend")
ERROR: LoadError: 1
Stacktrace:
 [1] error(::Int64) at ./error.jl:42
 [2] top-level scope at string:3
 [3] include_string(::Module, ::String, ::String) at ./loading.jl:1002
 [4] include_string(::Module, ::String) at ./loading.jl:1006
 [5] top-level scope at none:0
in expression starting at string:1

julia> softscope_include_string(Main, "begin\n3\nerror(1)\nend")
ERROR: 1
Stacktrace:
 [1] error(::Int64) at ./error.jl:42
 [2] top-level scope at string:3
 [3] eval at ./boot.jl:319 [inlined]
 [4] softscope_include_string(::Module, ::String, ::String) at /Users/stevenj/.julia/dev/SoftGlobalScope/src/SoftGlobalScope.jl:206
 [5] softscope_include_string(::Module, ::String) at /Users/stevenj/.julia/dev/SoftGlobalScope/src/SoftGlobalScope.jl:192
 [6] top-level scope at none:0

However, it's still not wrapped in a LoadError, which is a separate issue.

[stevengj]

Should no longer be an issue for Julia 1.5+ (#25).