Remove the stack-machine wasmi engine backend

[Robbepop]

Closes #816.

[paritytech-cicd-pr]

BENCHMARKS

	NATIVE			WASMTIME
BENCHMARK	MASTER	PR	DIFF	MASTER	PR	DIFF	WASMTIME OVERHEAD
execute/ br_table	1.55ms	1.55ms	⚪ -0.40%	1.42ms	1.31ms	🟢 -7.66%	🟢 -16%
execute/ call/host/1	36.98µs	45.67µs	🔴 22.66%	38.29µs	66.73µs	🔴 74.06%	🟢 46%
execute/ call/rec	167.00µs	167.15µs	⚪ 0.23%	359.43µs	354.68µs	🟢 -1.36%	🔴 112%
execute/ count_until	7.45ms	7.33ms	🟢 -1.61%	7.60ms	7.51ms	🟢 -1.16%	🟢 2%
execute/ factorial/iter	225.52µs	235.25µs	🔴 5.20%	316.10µs	327.88µs	🔴 3.79%	🟢 39%
execute/ factorial/rec	675.81µs	675.91µs	⚪ 0.17%	1.35ms	1.33ms	🟢 -1.54%	🟡 97%
execute/ fibonacci/iter	1.36ms	1.36ms	⚪ 0.23%	1.18ms	1.20ms	🔴 1.73%	🟢 -12%
execute/ fibonacci/rec	6.15ms	6.16ms	⚪ 0.12%	13.05ms	13.21ms	⚪ 0.95%	🔴 114%
execute/ fibonacci/tail	1.35ms	1.35ms	⚪ 0.21%	3.70ms	3.82ms	🔴 3.18%	🔴 183%
execute/ fuse	8.11ms	7.44ms	🟢 -8.07%	12.93ms	11.39ms	🟢 -11.93%	🟡 53%
execute/ global/bump	1.33ms	1.32ms	⚪ -0.63%	1.67ms	1.59ms	🟢 -4.42%	🟢 21%
execute/ global/get_const	734.69µs	729.70µs	⚪ -0.73%	747.86µs	751.66µs	⚪ 0.52%	🟢 3%
execute/ is_even/rec	1.08ms	1.07ms	⚪ -1.24%	2.25ms	2.23ms	⚪ -0.90%	🔴 109%
execute/ memory/fill_bytes	1.13ms	1.17ms	🔴 3.68%	1.22ms	1.24ms	🔴 1.69%	🟢 5%
execute/ memory/sum_bytes	1.14ms	1.09ms	🟢 -4.21%	1.20ms	1.20ms	⚪ 0.02%	🟢 10%
execute/ memory/vec_add	2.99ms	3.17ms	🔴 5.02%	3.51ms	3.38ms	🟢 -3.56%	🟢 7%
execute/ recursive_scan	185.53µs	185.87µs	⚪ 0.19%	377.84µs	378.20µs	⚪ 0.19%	🔴 103%
execute/ recursive_trap	15.26µs	15.25µs	⚪ -0.17%	35.80µs	34.59µs	🟢 -3.89%	🔴 127%
execute/ regex_redux	594.71µs	591.89µs	⚪ -0.57%	1.02ms	1.01ms	⚪ -1.15%	🟡 70%
execute/ rev_complement	446.38µs	443.10µs	⚪ -0.62%	710.20µs	632.74µs	🟢 -10.86%	🟢 43%
execute/ tiny_keccak	349.31µs	350.96µs	⚪ 0.61%	415.99µs	388.46µs	🟢 -6.43%	🟢 11%
execute/ trunc_f2i	622.87µs	613.78µs	⚪ -1.57%	940.86µs	948.22µs	⚪ 0.71%	🟡 54%
instantiate/ wasm_kernel	54.54µs	54.76µs	⚪ 2.71%	55.61µs	56.24µs	⚪ 2.15%	🟢 3%
overhead/ call/typed/0	1.23ms	1.22ms	⚪ -1.18%	870.82µs	899.92µs	🔴 3.19%	🟢 -26%
overhead/ call/typed/16	1.57ms	1.63ms	🔴 3.71%	2.12ms	2.12ms	⚪ 0.05%	🟢 30%
overhead/ call/untyped/0	1.65ms	1.60ms	🟢 -3.01%	1.30ms	1.42ms	🔴 8.68%	🟢 -11%
overhead/ call/untyped/16	2.43ms	2.46ms	⚪ 1.32%	4.02ms	4.10ms	🔴 1.89%	🟡 67%
translate/ bz2/default	1.39ms	1.36ms	🟢 -2.41%	2.48ms	2.47ms	⚪ -0.39%	🟡 82%
translate/ bz2/fuel	1.44ms	1.40ms	🟢 -2.87%	2.63ms	2.62ms	⚪ -0.34%	🟡 87%
translate/ erc1155/default	288.02µs	276.78µs	🟢 -3.41%	478.95µs	472.50µs	🟢 -1.79%	🟡 71%
translate/ erc1155/fuel	306.82µs	296.89µs	🟢 -2.99%	509.44µs	507.25µs	⚪ -0.76%	🟡 71%
translate/ erc20/default	138.12µs	135.32µs	🟢 -1.89%	229.22µs	226.31µs	🟢 -1.51%	🟡 67%
translate/ erc20/fuel	148.78µs	142.65µs	🟢 -3.98%	239.12µs	240.73µs	⚪ 0.00%	🟡 69%
translate/ erc721/default	196.95µs	190.72µs	🟢 -3.41%	331.07µs	330.61µs	⚪ -0.62%	🟡 73%
translate/ erc721/fuel	207.43µs	199.98µs	🟢 -3.98%	348.30µs	344.87µs	⚪ -1.22%	🟡 72%
translate/ pulldown_cmark/default	3.82ms	3.75ms	🟢 -2.57%	6.43ms	6.43ms	⚪ -0.09%	🟡 71%
translate/ pulldown_cmark/fuel	3.89ms	3.81ms	🟢 -2.28%	6.75ms	6.77ms	⚪ 0.45%	🟡 78%
translate/ spidermonkey/default	0.00ns	0.00ns	🟢 -2.35%	0.00ns	0.00ns	⚪ 0.39%	🟢 0%
translate/ spidermonkey/fuel	0.00ns	0.00ns	🟢 -2.36%	0.00ns	0.00ns	⚪ -0.11%	🟢 0%
translate/ wasm_kernel/default	5.07ms	4.95ms	🟢 -2.49%	8.67ms	8.66ms	⚪ -0.20%	🟡 75%
translate/ wasm_kernel/fuel	5.23ms	5.11ms	🟢 -2.26%	9.09ms	9.04ms	⚪ -0.46%	🟡 77%

Link to pipeline

[codecov-commenter]

Codecov Report

Attention: 33 lines in your changes are missing coverage. Please review.

Comparison is base (11f51be) 81.52% compared to head (f316ddc) 80.96%.

Files	Patch %	Lines
crates/wasmi/src/engine/limits.rs	26.66%	11 Missing ⚠️
crates/wasmi/src/engine/regmach/bytecode/utils.rs	88.76%	10 Missing ⚠️
crates/wasmi/tests/e2e/v1/resumable_call.rs	90.24%	4 Missing ⚠️
...smi/src/engine/regmach/translator/instr_encoder.rs	83.33%	3 Missing ⚠️
crates/cli/src/context.rs	0.00%	1 Missing ⚠️
crates/cli/src/main.rs	0.00%	1 Missing ⚠️
crates/wasmi/src/engine/regmach/mod.rs	83.33%	1 Missing ⚠️
crates/wasmi/src/module/builder.rs	0.00%	1 Missing ⚠️
crates/wasmi/src/module/parser.rs	87.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #818      +/-   ##
==========================================
- Coverage   81.52%   80.96%   -0.56%     
==========================================
  Files         275      257      -18     
  Lines       25529    22321    -3208     
==========================================
- Hits        20812    18073    -2739     
+ Misses       4717     4248     -469     

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