@allocated with broadcast expression fails on 1.12

[aplavin]

Noticed in a CI run of StructArrays, JuliaArrays/StructArrays.jl#334.
MWE:

julia> f(x) = @allocated x .+ 1
f (generic function with 1 method)

julia> f([1,2])
80  # on 1.11
ERROR: UndefVarError: `.+` not defined in `Main`  # on 1.12