further decrease limit

Author: nsajko

base/promotion.jl

@@ -326,8 +326,9 @@ function _promote_type_binary(::Type{T}, ::Type{S}, recursion_depth_limit::Tuple
 end
 
 const _promote_type_binary_recursion_depth_limit = let n = nothing  # recursion depth limit to prevent stack overflow
-    f = (n, n, n, n)
-    (f..., f..., f..., f...)
+    n2 = (n, n)
+    n4 = (n2..., n2...)
+    (n4..., n4..., n4..., n2...)
 end
 
 function promote_type(::Type{T}, ::Type{S}) where {T,S}