Import @boundscheck and @inbounds from Base

Author: nickrobinson251

base/iterators.jl

@@ -12,7 +12,7 @@ using .Base:
     @inline, Pair, AbstractDict, IndexLinear, IndexCartesian, IndexStyle, AbstractVector, Vector,
     tail, tuple_type_head, tuple_type_tail, tuple_type_cons, SizeUnknown, HasLength, HasShape,
     IsInfinite, EltypeUnknown, HasEltype, OneTo, @propagate_inbounds, Generator, AbstractRange,
-    LinearIndices, (:), |, +, -, !==, !, <=, <, missing, map, any
+    LinearIndices, (:), |, +, -, !==, !, <=, <, missing, map, any, @boundscheck, @inbounds
 
 import .Base:
     first, last,
@@ -1100,7 +1100,7 @@ length(s::Stateful) = length(s.itr) - s.taken
 Returns the one and only element of collection `x`, and throws an `ArgumentError` if the
 collection has zero or multiple elements.
 """
-Base.@propagate_inbounds function only(x)
+@propagate_inbounds function only(x)
     i = iterate(x)
     @boundscheck if i === nothing
         throw(ArgumentError("Collection is empty, must contain exactly 1 element"))