add const keyword to broadcasted AndAnd

[Pramodh-G]

Fixes #43470 .

[aviatesk]

Please add a test that demonstrates the inferrability improved by this PR.

[Pramodh-G]

After:

julia> x = randn(2)
2-element Vector{Float64}:
 -1.2451537541682325
 -1.2242484085305838

julia> y = randn(2)
2-element Vector{Float64}:
 0.1509648501453017
 1.758750943063555

julia> function dotandand(x,y) 
           (x .> 0.0) .&& (y .> 0.0)
       end
dotandand (generic function with 1 method)

julia> @code_warntype dotandand(x, y)
MethodInstance for dotandand(::Vector{Float64}, ::Vector{Float64})
  from dotandand(x, y) in Main at REPL[3]:1
Arguments
  #self#::Core.Const(dotandand)
  x::Vector{Float64}
  y::Vector{Float64}
Body::BitVector
1 ─ %1 = Base.broadcasted(Main.:>, x, 0.0)::Core.PartialStruct(Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}, Any[Core.Const(>), Core.PartialStruct(Tuple{Vector{Float64}, Float64}, Any[Vector{Float64}, Core.Const(0.0)]), Core.Const(nothing)])
│   %2 = Base.broadcasted(Main.:>, y, 0.0)::Core.PartialStruct(Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}, Any[Core.Const(>), Core.PartialStruct(Tuple{Vector{Float64}, Float64}, Any[Vector{Float64}, Core.Const(0.0)]), Core.Const(nothing)])
│   %3 = Base.broadcasted(Base.andand, %1, %2)::Core.PartialStruct(Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, Base.Broadcast.var"#3#4"{Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}}, Tuple{Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}, Vector{Float64}, Float64}}, Any[Core.PartialStruct(Base.Broadcast.var"#3#4"{Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}}, Any[Core.PartialStruct(Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}, Any[Core.Const(>), Core.PartialStruct(Tuple{Vector{Float64}, Float64}, Any[Vector{Float64}, Core.Const(0.0)]), Core.Const(nothing)])]), Core.PartialStruct(Tuple{Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}, Vector{Float64}, Float64}, Any[Core.PartialStruct(Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, typeof(>), Tuple{Vector{Float64}, Float64}}, Any[Core.Const(>), Core.PartialStruct(Tuple{Vector{Float64}, Float64}, Any[Vector{Float64}, Core.Const(0.0)]), Core.Const(nothing)]), Vector{Float64}, Core.Const(0.0)]), Core.Const(nothing)])
│   %4 = Base.materialize(%3)::BitVector
└──      return %4