Add code_typed(::InvalidIRError) and print a hint about it. (#281)

Author: tkf

src/reflection.jl

@@ -79,6 +79,10 @@ function code_warntype(io::IO, @nospecialize(job::CompilerJob); interactive::Boo
 end
 code_warntype(@nospecialize(job::CompilerJob); kwargs...) = code_warntype(stdout, job; kwargs...)
 
+InteractiveUtils.code_lowered(err::InvalidIRError; kwargs...) = code_lowered(err.job; kwargs...)
+InteractiveUtils.code_typed(err::InvalidIRError; kwargs...) = code_typed(err.job; kwargs...)
+InteractiveUtils.code_warntype(err::InvalidIRError; kwargs...) = code_warntype(err.job; kwargs...)
+
 """
     code_llvm([io], job; optimize=true, raw=false, dump_module=false)
 

src/validation.jl

@@ -101,6 +101,14 @@ function Base.showerror(io::IO, err::InvalidIRError)
         end
         Base.show_backtrace(io, bt)
     end
+    println(io)
+    printstyled(io, "HINT"; bold = true, color = :cyan)
+    printstyled(
+        io,
+        ": catch this exception as `err` and call `code_typed(err; interactive = true)` to",
+        " introspect the erronous code";
+        color = :cyan,
+    )
     return
 end