Update test to check against Array

Author: jishnub

test/linalg.jl

@@ -340,7 +340,7 @@ end
         end
 
         v = sprand(eltype(D), size(D,1), 0.1)
-        @test ldiv!(D, copy(v)) == D \ v
+        @test ldiv!(D, copy(v)) == D \ Array(v)
     end
 end