fix test from builtin check on 1.0 (#224)

KristofferC · web-flow · commit bae1a98ddd1b · 2019-03-27T11:21:51.000+01:00
diff --git a/test/interpret.jl b/test/interpret.jl
@@ -444,5 +444,5 @@ finally
 end
 
 # Check #args for builtins (#217)
-f217() =  Core._typevar(:foo, Union{}, Any, "foo")
+f217() = <:(Float64, Float32, Float16)
 @test_throws ArgumentError @interpret(f217())
