only subtype checking for reference type

[chenyan-dfinity]

Implement #311

[github-actions]

Benchmark for 8405c86

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Test	Base	PR	%
Blob/&str	211.4±127.60µs	210.5±120.47µs	-0.43%
Blob/ByteBuf	137.2±49.28µs	134.8±50.28µs	-1.75%
Blob/Bytes	104.1±46.86µs	103.0±46.86µs	-1.06%
Blob/String	244.2±130.06µs	244.3±130.73µs	+0.04%
Collections/vec (text, nat)	64.9±0.75ms	65.2±0.89ms	+0.46%
Collections/vec int	30.4±0.07ms	30.9±0.09ms	+1.64%
Collections/vec int64	22.5±0.23ms	21.7±0.20ms	-3.56%
Collections/vec nat8	17.9±0.05ms	17.8±0.04ms	-0.56%
option list/1024	2.4±0.04ms	2.1±0.01ms	-12.50%
profiles/1024	4.1±0.01ms	4.2±0.01ms	+2.44%
variant list/1024	2.3±0.01ms	2.3±0.03ms	0.00%

[github-actions]

Benchmark for fff535b

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Test	Base	PR	%
Blob/&str	278.3±85.16µs	276.0±84.09µs	-0.83%
Blob/ByteBuf	206.8±64.65µs	205.8±62.62µs	-0.48%
Blob/Bytes	129.2±37.08µs	129.0±38.02µs	-0.15%
Blob/String	304.3±96.62µs	302.6±96.33µs	-0.56%
Collections/vec (text, nat)	88.9±1.09ms	88.4±1.16ms	-0.56%
Collections/vec int	38.2±0.18ms	38.0±0.06ms	-0.52%
Collections/vec int64	27.1±0.17ms	27.1±0.19ms	0.00%
Collections/vec nat8	20.5±0.03ms	21.1±0.03ms	+2.93%
option list/1024	2.8±0.01ms	2.3±0.01ms	-17.86%
profiles/1024	4.9±0.01ms	4.9±0.01ms	0.00%
variant list/1024	2.8±0.01ms	2.7±0.01ms	-3.57%

[github-actions]

Benchmark for 8e65e69

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Test	Base	PR	%
Blob/&str	189.7±66.12µs	189.0±65.18µs	-0.37%
Blob/ByteBuf	137.6±49.85µs	136.1±50.13µs	-1.09%
Blob/Bytes	98.1±34.69µs	98.5±36.78µs	+0.41%
Blob/String	212.1±74.71µs	205.7±75.59µs	-3.02%
Collections/vec (text, nat)	63.3±0.40ms	65.3±0.74ms	+3.16%
Collections/vec int	29.9±0.05ms	34.6±1.94ms	+15.72%
Collections/vec int64	21.7±0.19ms	20.5±0.12ms	-5.53%
Collections/vec nat8	17.2±0.06ms	17.0±0.06ms	-1.16%
option list/1024	2.3±0.00ms	2.1±0.02ms	-8.70%
profiles/1024	4.0±0.00ms	4.3±0.02ms	+7.50%
variant list/1024	2.2±0.00ms	2.3±0.01ms	+4.55%

[github-actions]

Benchmark for dc1b488

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Test	Base	PR	%
Blob/&str	192.8±64.89µs	188.9±63.26µs	-2.02%
Blob/ByteBuf	140.0±47.74µs	136.4±50.81µs	-2.57%
Blob/Bytes	101.2±33.69µs	96.8±34.29µs	-4.35%
Blob/String	216.1±72.54µs	204.3±75.12µs	-5.46%
Collections/vec (text, nat)	65.2±0.69ms	66.0±1.08ms	+1.23%
Collections/vec int	30.0±0.11ms	30.0±0.21ms	0.00%
Collections/vec int64	21.6±0.54ms	22.1±0.21ms	+2.31%
Collections/vec nat8	17.3±0.05ms	17.4±0.05ms	+0.58%
option list/1024	2.3±0.00ms	1935.5±2.21µs	-15.85%
profiles/1024	4.1±0.01ms	4.1±0.01ms	0.00%
variant list/1024	2.3±0.01ms	2.3±0.00ms	0.00%

[github-actions]

Benchmark for f10d655

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Test	Base	PR	%
Blob/&str	287.9±91.70µs	287.1±96.05µs	-0.28%
Blob/ByteBuf	242.6±66.99µs	238.6±70.14µs	-1.65%
Blob/Bytes	167.1±52.45µs	158.6±40.89µs	-5.09%
Blob/String	357.4±113.71µs	340.4±88.06µs	-4.76%
Collections/vec (text, nat)	92.3±4.24ms	91.6±4.02ms	-0.76%
Collections/vec int	41.6±1.90ms	44.4±1.95ms	+6.73%
Collections/vec int64	28.9±1.65ms	38.0±1.84ms	+31.49%
Collections/vec nat8	22.7±1.30ms	22.5±1.21ms	-0.88%
option list/1024	3.2±0.19ms	2.6±0.13ms	-18.75%
profiles/1024	5.5±0.30ms	5.5±0.27ms	0.00%
variant list/1024	3.1±0.17ms	3.2±0.21ms	+3.23%

[github-actions]

Benchmark for a0eccde

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Test	Base	PR	%
Blob/&str	188.6±67.12µs	183.2±64.96µs	-2.86%
Blob/ByteBuf	136.8±49.77µs	136.6±49.02µs	-0.15%
Blob/Bytes	97.3±34.23µs	96.5±33.80µs	-0.82%
Blob/String	208.9±74.28µs	204.3±75.05µs	-2.20%
Collections/vec (text, nat)	66.0±0.96ms	71.2±0.85ms	+7.88%
Collections/vec int	30.6±0.13ms	32.0±0.50ms	+4.58%
Collections/vec int64	22.2±0.24ms	21.4±0.24ms	-3.60%
Collections/vec nat8	17.1±0.06ms	17.3±0.07ms	+1.17%
option list/1024	2.4±0.01ms	2.1±0.00ms	-12.50%
profiles/1024	4.1±0.01ms	4.1±0.01ms	0.00%
variant list/1024	2.3±0.03ms	2.4±0.07ms	+4.35%

[github-actions]

Benchmark for 7073bb5

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Test	Base	PR	%
Blob/&str	273.0±87.03µs	267.4±83.70µs	-2.05%
Blob/ByteBuf	203.4±64.82µs	180.8±56.18µs	-11.11%
Blob/Bytes	122.7±37.98µs	124.0±35.87µs	+1.06%
Blob/String	298.7±97.40µs	295.8±94.20µs	-0.97%
Collections/vec (text, nat)	88.2±1.28ms	86.2±1.47ms	-2.27%
Collections/vec int	37.9±0.19ms	37.8±0.17ms	-0.26%
Collections/vec int64	26.7±0.28ms	26.9±0.30ms	+0.75%
Collections/vec nat8	20.4±0.13ms	20.6±0.05ms	+0.98%
option list/1024	2.8±0.01ms	2.3±0.01ms	-17.86%
profiles/1024	4.9±0.03ms	4.9±0.03ms	0.00%
variant list/1024	2.7±0.01ms	2.7±0.01ms	0.00%

[github-actions]

Benchmark for 906755e

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Test	Base	PR	%
Blob/&str	237.0±72.52µs	236.0±71.35µs	-0.42%
Blob/ByteBuf	158.1±47.78µs	164.7±46.32µs	+4.17%
Blob/Bytes	108.1±32.64µs	110.7±33.13µs	+2.41%
Blob/String	232.6±71.77µs	243.6±66.42µs	+4.73%
Collections/vec (text, nat)	73.2±1.11ms	72.3±1.51ms	-1.23%
Collections/vec int	31.5±0.07ms	31.6±0.29ms	+0.32%
Collections/vec int64	22.2±0.21ms	23.7±0.22ms	+6.76%
Collections/vec nat8	17.1±0.02ms	17.1±0.03ms	0.00%
option list/1024	2.4±0.00ms	2.0±0.03ms	-16.67%
profiles/1024	4.1±0.01ms	4.1±0.01ms	0.00%
variant list/1024	2.3±0.00ms	2.4±0.01ms	+4.35%

[github-actions]

Benchmark for e0807af

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Test	Base	PR	%
Blob/&str	269.3±82.90µs	271.3±82.98µs	+0.74%
Blob/ByteBuf	180.8±57.79µs	177.6±55.76µs	-1.77%
Blob/Bytes	119.9±36.72µs	121.3±35.62µs	+1.17%
Blob/String	290.9±92.32µs	291.5±91.08µs	+0.21%
Collections/vec (text, nat)	84.3±2.73ms	85.3±2.20ms	+1.19%
Collections/vec int	36.6±1.20ms	38.4±1.19ms	+4.92%
Collections/vec int64	26.0±0.89ms	26.2±0.82ms	+0.77%
Collections/vec nat8	20.0±0.43ms	19.8±0.47ms	-1.00%
option list/1024	2.7±0.08ms	2.2±0.06ms	-18.52%
profiles/1024	4.7±0.12ms	4.8±0.14ms	+2.13%
variant list/1024	2.7±0.07ms	2.6±0.08ms	-3.70%

[github-actions]

Benchmark for f7079b9

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Test	Base	PR	%
Blob/&str	287.4±83.73µs	285.2±83.44µs	-0.77%
Blob/ByteBuf	248.5±70.84µs	232.2±58.44µs	-6.56%
Blob/Bytes	165.1±47.22µs	162.8±44.58µs	-1.39%
Blob/String	348.0±87.00µs	352.1±86.49µs	+1.18%
Collections/vec (text, nat)	93.9±3.67ms	91.9±2.78ms	-2.13%
Collections/vec int	41.4±1.16ms	42.4±1.19ms	+2.42%
Collections/vec int64	29.8±1.49ms	30.0±1.78ms	+0.67%
Collections/vec nat8	22.8±1.21ms	22.7±1.33ms	-0.44%
option list/1024	3.1±0.15ms	2.6±0.13ms	-16.13%
profiles/1024	5.5±0.21ms	5.7±0.32ms	+3.64%
variant list/1024	3.1±0.12ms	3.1±0.08ms	0.00%

[github-actions]

Benchmark for 1b2333a

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Test	Base	PR	%
Blob/&str	208.8±119.18µs	205.0±128.28µs	-1.82%
Blob/ByteBuf	137.3±49.26µs	135.0±48.86µs	-1.68%
Blob/Bytes	103.1±46.87µs	102.6±46.91µs	-0.48%
Blob/String	242.9±130.66µs	241.3±129.45µs	-0.66%
Collections/vec (text, nat)	63.7±0.47ms	67.2±0.77ms	+5.49%
Collections/vec int	30.2±0.05ms	30.9±0.17ms	+2.32%
Collections/vec int64	21.7±0.30ms	21.8±0.44ms	+0.46%
Collections/vec nat8	17.8±0.05ms	17.7±0.07ms	-0.56%
option list/1024	2.3±0.02ms	1963.5±4.06µs	-14.63%
profiles/1024	4.1±0.02ms	4.1±0.05ms	0.00%
variant list/1024	2.3±0.03ms	2.3±0.01ms	0.00%

[github-actions]

Benchmark for 59a7eba

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Test	Base	PR	%
Blob/&str	233.4±73.73µs	233.6±72.13µs	+0.09%
Blob/ByteBuf	159.1±48.88µs	154.7±47.79µs	-2.77%
Blob/Bytes	105.7±32.37µs	103.9±31.35µs	-1.70%
Blob/String	233.1±71.53µs	230.7±70.56µs	-1.03%
Collections/vec (text, nat)	73.2±1.89ms	73.3±1.23ms	+0.14%
Collections/vec int	31.5±0.09ms	31.7±0.10ms	+0.63%
Collections/vec int64	22.6±0.36ms	21.5±0.43ms	-4.87%
Collections/vec nat8	17.1±0.02ms	17.1±0.07ms	0.00%
option list/1024	2.4±0.01ms	2.0±0.01ms	-16.67%
profiles/1024	4.1±0.00ms	4.1±0.01ms	0.00%
variant list/1024	2.3±0.01ms	2.3±0.02ms	0.00%