From 1bbc846f6ff710def11e976c518e9b047779f02a 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] 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.

(cherry picked from commit 95c26b51bfc6967234b2e05319c96003cbc1e330)
ref #18396

Add a test for #18396.

Call a kwarg function in Core.Inference where vector_any was unavailable.

(cherry picked from commit fab9560f1f6069bc37368f593d5177125a6c8c53)
---
 base/base.jl        | 10 ----------
 base/essentials.jl  | 10 ++++++++++
 test/keywordargs.jl |  7 +++++++
 3 files changed, 17 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 30b8d83148f46..6753cf0f254c4 100644
--- a/base/essentials.jl
+++ b/base/essentials.jl
@@ -209,3 +209,13 @@ 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
diff --git a/test/keywordargs.jl b/test/keywordargs.jl
index 8030e3dce0ee1..874c747581234 100644
--- a/test/keywordargs.jl
+++ b/test/keywordargs.jl
@@ -218,3 +218,10 @@ end
 @test f9948(x=5) == 5
 @test_throws UndefVarError f9948()
 @test getx9948() == 3
+
+# 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