Fix FastBroadcast extension for v1.0 API

Update RecursiveArrayToolsFastBroadcastExt to use FastBroadcast v1.0's
2-arg fast_materialize!(dst, bc) signature instead of the old 4-arg
fast_materialize!(::Static.False, ::DB, dst, bc). The 2-arg method is
the base dispatch point that Serial() delegates to, so this covers all
non-threaded paths. Require FastBroadcast >= 1.1.

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ChrisRackauckas

Project.toml

@@ -47,7 +47,7 @@ Adapt = "4"
 Aqua = "0.8"
 ArrayInterface = "7.16"
 DocStringExtensions = "0.9.3"
-FastBroadcast = "0.3.5, 1"
+FastBroadcast = "1.1"
 ForwardDiff = "0.10.38, 1"
 GPUArraysCore = "0.2"
 KernelAbstractions = "0.9.36"

ext/RecursiveArrayToolsFastBroadcastExt.jl

@@ -2,16 +2,18 @@ module RecursiveArrayToolsFastBroadcastExt
 
 using RecursiveArrayTools
 using FastBroadcast
+using FastBroadcast: Serial, Threaded
 using StaticArraysCore
 
 const AbstractVectorOfSArray = AbstractVectorOfArray{
     T, N, <:AbstractVector{<:StaticArraysCore.SArray},
 } where {T, N}
 
+# Override the base 2-arg path (called by Serial dispatch and direct macro path)
 @inline function FastBroadcast.fast_materialize!(
-        ::FastBroadcast.Static.False, ::DB, dst::AbstractVectorOfSArray,
+        dst::AbstractVectorOfSArray,
         bc::Broadcast.Broadcasted{S}
-    ) where {S, DB}
+    ) where {S}
     if FastBroadcast.use_fast_broadcast(S)
         for i in 1:length(dst.u)
             unpacked = RecursiveArrayTools.unpack_voa(bc, i)