test/broadcast: put r1, r2, ratio, m into let (#36817)

Author: zlatanvasovic

test/broadcast.jl

@@ -152,15 +152,16 @@ for arr in (identity, as_sub)
     end
 end
 
-r1 = 1:1
-r2 = 1:5
-ratio = [1,1/2,1/3,1/4,1/5]
-@test r1.*r2 == [1:5;]
-@test r1./r2 == ratio
-m = [1:2;]'
-@test m.*r2 == [1:5 2:2:10]
-@test m./r2 ≈ [ratio 2ratio]
-@test m./[r2;] ≈ [ratio 2ratio]
+let r1 = 1:1,
+    r2 = 1:5,
+    ratio = [1,1/2,1/3,1/4,1/5],
+    m = [1:2;]'
+    @test r1.*r2 == [1:5;]
+    @test r1./r2 == ratio
+    @test m.*r2 == [1:5 2:2:10]
+    @test m./r2 ≈ [ratio 2ratio]
+    @test m./[r2;] ≈ [ratio 2ratio]
+end
 
 @test @inferred(broadcast(+,[0,1.2],reshape([0,-2],1,1,2))) == reshape([0 -2; 1.2 -0.8],2,1,2)
 rt = Base.return_types(broadcast, Tuple{typeof(+), Array{Float64, 3}, Array{Int, 1}})