benchmark: add benchmark for printing a large polynomial

Author: AayushSabharwal

benchmark/benchmarks.jl

@@ -83,6 +83,7 @@ let r = @rule(~x => ~x), rs = RuleSet([r]),
         # create a relatively large polynomial
         large_poly = SymbolicUtils.expand((x^2 + 2y1 + 3z12 + y2*z23 + x*y1*z12 - x^2*z12 + x*z11 + y3 + y2 + z23 + 1)^8)
         overhead["get_degrees"]["large_poly"] = @benchmarkable SymbolicUtils.get_degrees($large_poly)
+        SUITE["printing"]["large_poly"] = @benchmarkable show(devnull, $large_poly)
     end
 end