support for inference heuristic spoofing (ref JuliaLang/julia#24852)

Author: jrevels

src/overdub/execution.jl

@@ -170,7 +170,8 @@ for N in 0:MAX_ARGS
                      Any[:f, arg_names...],
                      Any[:F, :C, :M, :world, :debug],
                      @__LINE__,
-                     QuoteNode(Symbol(@__FILE__)))
+                     QuoteNode(Symbol(@__FILE__)),
+                     true)
     @eval begin
         function _overdub_generator(::Type{F}, ::Type{C}, ::Type{M}, world, debug, f, $(arg_names...)) where {F,C,M}
             ftype = unbox(C, F)
@@ -180,6 +181,7 @@ for N in 0:MAX_ARGS
             if isa(method_body, CodeInfo)
                 method_body = overdub_new!(overdub_calls!(getpass(C, M)(signature, method_body)))
                 method_body.inlineable = true
+                method_body.signature_for_inference_heuristics = Core.svec(ftype, atypes, world)
             else
                 arg_names = $arg_names
                 method_body = quote