put back Any16 and All16 since some packges seem to rely on it (#41469)

Author: KristofferC

base/deprecated.jl

@@ -243,6 +243,12 @@ cat_shape(dims, shape::Tuple{}) = () # make sure `cat_shape(dims, ())` do not re
 @deprecate unsafe_indices(A) axes(A) false
 @deprecate unsafe_length(r) length(r) false
 
+# these were internal type aliases, but some pacakges seem to be relying on them
+const Any16{N} = Tuple{Any,Any,Any,Any,Any,Any,Any,Any,
+                        Any,Any,Any,Any,Any,Any,Any,Any,Vararg{Any,N}}
+const All16{T,N} = Tuple{T,T,T,T,T,T,T,T,
+                         T,T,T,T,T,T,T,T,Vararg{T,N}}
+
 # END 1.6 deprecations
 
 # BEGIN 1.7 deprecations