Refactor Trap type

[Robbepop]

• Trap no longer is Clone
• Added Trap::{downcast_mut, downcast} methods

[paritytech-cicd-pr]

BENCHMARKS

	NATIVE			WASMTIME
BENCHMARK	MASTER	PR	DIFF	MASTER	PR	DIFF	WASMTIME OVERHEAD
execute/ bare_call_0	1.47ms	1.39ms	🟢 -5.34%	1.16ms	1.17ms	🟢 1.03%	🟢 -16%
execute/ bare_call_0/typed	1.03ms	1.02ms	⚪ -0.79%	803.85µs	760.45µs	🟢 -5.30%	🟢 -25%
execute/ bare_call_1	1.51ms	1.43ms	🟢 -5.50%	1.40ms	1.36ms	🔴 -2.54%	🟢 -4%
execute/ bare_call_16	2.44ms	2.26ms	🟢 -7.29%	4.16ms	4.34ms	🔴 4.36%	🟡 92%
execute/ bare_call_16/typed	1.94ms	1.56ms	🟢 -19.44%	2.74ms	2.28ms	🟢 -16.82%	🟢 47%
execute/ bare_call_1/typed	1.18ms	1.11ms	🟢 -5.33%	1.17ms	1.18ms	🔴 1.32%	🟢 6%
execute/ bare_call_4	1.64ms	1.56ms	🟢 -3.96%	2.08ms	2.04ms	🟢 -1.89%	🟢 31%
execute/ bare_call_4/typed	1.16ms	1.14ms	🟢 -1.95%	1.34ms	1.25ms	🟢 -6.68%	🟢 10%
execute/ br_table	1.23ms	1.13ms	🟢 -6.51%	1.41ms	1.45ms	🔴 3.43%	🟢 29%
execute/ count_until	651.79µs	682.29µs	🔴 4.59%	2.29ms	2.16ms	🟢 -5.48%	🔴 217%
execute/ factorial_iterative	328.77µs	327.78µs	⚪ -0.21%	957.47µs	916.67µs	🟢 -4.39%	🔴 180%
execute/ factorial_recursive	656.72µs	645.93µs	🟢 -1.75%	1.40ms	1.35ms	🟢 -3.47%	🔴 109%
execute/ fib_iterative	1.36ms	1.36ms	⚪ -0.01%	4.99ms	5.01ms	⚪ 0.31%	🔴 269%
execute/ fib_recursive	5.92ms	6.08ms	🔴 2.64%	12.50ms	11.99ms	🟢 -4.03%	🟡 97%
execute/ global_bump	977.05µs	960.54µs	🟢 -1.72%	2.63ms	2.79ms	🔴 5.93%	🔴 190%
execute/ global_const	745.55µs	737.22µs	⚪ -1.76%	2.44ms	2.40ms	🟢 -1.68%	🔴 226%
execute/ host_calls	26.51µs	26.21µs	🟢 -1.18%	40.37µs	39.17µs	🟢 -2.99%	🟢 49%
execute/ memory_fill	1.21ms	1.26ms	🔴 3.38%	4.17ms	4.04ms	🟢 -3.52%	🔴 221%
execute/ memory_sum	1.18ms	1.22ms	🔴 3.05%	4.16ms	4.02ms	🟢 -3.19%	🔴 230%
execute/ memory_vec_add	2.48ms	2.50ms	⚪ 0.81%	7.83ms	7.65ms	🟢 -2.27%	🔴 206%
execute/ recursive_is_even	1.14ms	1.13ms	⚪ -0.35%	2.36ms	2.19ms	🟢 -7.09%	🟡 93%
execute/ recursive_ok	161.44µs	153.34µs	🟢 -4.98%	326.32µs	312.36µs	🟢 -4.22%	🔴 104%
execute/ recursive_scan	182.90µs	183.21µs	⚪ 0.28%	407.81µs	395.13µs	🟢 -3.19%	🔴 116%
execute/ recursive_trap	16.79µs	15.75µs	🟢 -6.82%	32.67µs	31.18µs	🟢 -4.32%	🟡 98%
execute/ regex_redux	569.49µs	533.86µs	🟢 -6.22%	1.43ms	1.37ms	🟢 -3.83%	🔴 157%
execute/ rev_complement	480.89µs	480.34µs	⚪ -0.07%	1.44ms	1.40ms	🟢 -2.71%	🔴 191%
execute/ tiny_keccak	341.38µs	334.04µs	🟢 -2.19%	1.15ms	1.15ms	⚪ -0.07%	🔴 243%
execute/ trunc_f2i	708.17µs	722.95µs	🔴 2.10%	2.19ms	2.14ms	🟢 -1.84%	🔴 196%
instantiate/ wasm_kernel	64.27µs	64.07µs	⚪ 0.04%	68.84µs	69.58µs	🔴 1.96%	🟢 9%
translate/ erc1155	210.26µs	209.58µs	⚪ -0.38%	387.34µs	389.15µs	⚪ 0.56%	🟡 86%
translate/ erc20	106.10µs	103.41µs	🟢 -3.73%	190.19µs	192.90µs	⚪ 1.22%	🟡 87%
translate/ erc721	148.91µs	147.39µs	⚪ -0.99%	275.86µs	277.75µs	⚪ 0.90%	🟡 88%
translate/ spidermonkey	0.00ns	0.00ns	⚪ -0.30%	0.00ns	0.00ns	🔴 1.80%	🟢 0%
translate/ wasm_kernel	3.93ms	3.92ms	⚪ -0.35%	7.23ms	7.30ms	⚪ 0.42%	🟡 86%

Link to pipeline