From 95c26b51bfc6967234b2e05319c96003cbc1e330 Mon Sep 17 00:00:00 2001
From: Tim Besard <tim.besard@gmail.com>
Date: Wed, 7 Sep 2016 15:05:02 -0400
Subject: [PATCH 1/2] Define vector_any in coreimg.

This enables calls to kwarg functions before Base is defined
(eg. in inference), as the frontend generates a call to vector_any.
---
 base/base.jl       | 10 ----------
 base/essentials.jl | 10 ++++++++++
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/base/base.jl b/base/base.jl
index 9fa8d77cb4a15..65ea7d517bb8d 100644
--- a/base/base.jl
+++ b/base/base.jl
@@ -145,16 +145,6 @@ finalize(o::ANY) = ccall(:jl_finalize_th, Void, (Ptr{Void}, Any,),
 gc(full::Bool=true) = ccall(:jl_gc_collect, Void, (Cint,), full)
 gc_enable(on::Bool) = ccall(:jl_gc_enable, Cint, (Cint,), on)!=0
 
-# used by interpolating quote and some other things in the front end
-function vector_any(xs::ANY...)
-    n = length(xs)
-    a = Array{Any}(n)
-    @inbounds for i = 1:n
-        arrayset(a,xs[i],i)
-    end
-    a
-end
-
 immutable Nullable{T}
     isnull::Bool
     value::T
diff --git a/base/essentials.jl b/base/essentials.jl
index 75fa67251fa56..0363f7a525d1c 100644
--- a/base/essentials.jl
+++ b/base/essentials.jl
@@ -217,3 +217,13 @@ const (:) = Colon()
 # For passing constants through type inference
 immutable Val{T}
 end
+
+# used by interpolating quote and some other things in the front end
+function vector_any(xs::ANY...)
+    n = length(xs)
+    a = Array{Any}(n)
+    @inbounds for i = 1:n
+        Core.arrayset(a,xs[i],i)
+    end
+    a
+end

From fab9560f1f6069bc37368f593d5177125a6c8c53 Mon Sep 17 00:00:00 2001
From: Tim Besard <tim.besard@gmail.com>
Date: Tue, 13 Sep 2016 15:26:16 -0400
Subject: [PATCH 2/2] Add a test for #18396.

Call a kwarg function in Core.Inference where vector_any was unavailable.
---
 test/keywordargs.jl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/keywordargs.jl b/test/keywordargs.jl
index 706a3a326a6e0..aa58b0aa487fc 100644
--- a/test/keywordargs.jl
+++ b/test/keywordargs.jl
@@ -227,3 +227,10 @@ let opts = (:a=>3, :b=>4)
     @test g17785(; opts..., a=5, b=6) == (5, 6)
     @test g17785(; b=0, opts..., a=5) == (5, 4)
 end
+
+# pr #18396, kwargs before Base is defined
+eval(Core.Inference, quote
+    f18396(;kwargs...) = g18396(;kwargs...)
+    g18396(;x=1,y=2) = x+y
+end)
+@test Core.Inference.f18396() == 3