Import typesof from Base instead of InteractiveUtils (#1569)

* Import `typesof` from Base instead of InteractiveUtils

`typesof` was defined in Base, and simply used by InteractiveUtils.
A recent commit removed the `using` from InteractiveUtils, breaking
the import.

* Bump version

* qualify IRTools.Variable to silence a warning

---------

Co-authored-by: Cédric Belmant <[email protected]>
Co-authored-by: Michael Abbott <[email protected]>

Author: serenity4

Project.toml

@@ -1,6 +1,6 @@
 name = "Zygote"
 uuid = "e88e6eb3-aa80-5325-afca-941959d7151f"
-version = "0.7.6"
+version = "0.7.7"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"

src/compiler/interface.jl

@@ -1,5 +1,5 @@
 using InteractiveUtils
-using InteractiveUtils: typesof
+using Base: typesof
 using Core: Typeof
 import Base: copy!, IdSet
 import Base.Broadcast: broadcasted, materialize!

src/compiler/reverse.jl

@@ -1,4 +1,4 @@
-using IRTools: IR, Variable, Pipe, xcall, var, prewalk, postwalk,
+using IRTools: IRTools, IR, Variable, Pipe, xcall, var, prewalk, postwalk,
   blocks, predecessors, successors, argument!, arguments, branches,
   insertafter!, finish, expand!, prune!, substitute!, substitute,
   block, block!, branch!, return!, stmt, meta
@@ -250,7 +250,7 @@ Base.show(io::IO, x::Alpha) = print(io, "@", x.id)
 
 alpha(x) = x
 alpha(x::Variable) = Alpha(x.id)
-Variable(a::Alpha) = Variable(a.id)
+IRTools.Variable(a::Alpha) = Variable(a.id)
 
 sig(b::IRTools.Block) = unique([arg for br in branches(b) for arg in br.args if arg isa Variable])
 sig(pr::Primal) = Dict(b.id => sig(b) for b in blocks(pr.ir))