Fix parsing of 0_ integer literals

[turbolent]

Closes dapperlabs/cadence-private-issues#14

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• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[github-actions]

Cadence Benchstat comparison

This branch with compared with the base branch onflow:master commit b180983
The command for i in {1..N}; do go test ./... -run=XXX -bench=. -shuffle=on; done was used.
Bench tests were run a total of 7 times on each branch.

Results

	old.txt	new.txt
	time/op		delta
NewInterpreter/new_interpreter-2	946ns ± 6%	1013ns ± 7%	+7.13%	(p=0.022 n=7+6)
NewInterpreter/new_sub-interpreter-2	1.89µs ± 2%	1.97µs ± 5%	+4.55%	(p=0.035 n=5+6)
RuntimeResourceDictionaryValues-2	13.7ms ± 6%	13.7ms ± 7%	~	(p=0.902 n=7+7)
RuntimeFungibleTokenTransfer-2	961µs ± 4%	1079µs ±32%	~	(p=0.628 n=6+7)
ParseDeploy/byte_array-2	19.8ms ± 5%	20.0ms ± 7%	~	(p=0.620 n=7+7)
ParseDeploy/decode_hex-2	1.07ms ± 4%	1.09ms ± 6%	~	(p=0.456 n=7+7)
ParseArray-2	12.4ms ± 4%	12.7ms ± 3%	~	(p=0.132 n=6+6)
ParseInfix-2	9.17µs ± 9%	9.50µs ±12%	~	(p=0.295 n=7+6)
ParseFungibleToken-2	172µs ± 2%	175µs ± 6%	~	(p=0.945 n=6+7)
QualifiedIdentifierCreation/Three_levels-2	130ns ± 4%	132ns ± 5%	~	(p=0.534 n=7+6)
CheckContractInterfaceFungibleTokenConformance-2	126µs ± 5%	123µs ± 8%	~	(p=0.240 n=6+6)
ContractInterfaceFungibleToken-2	37.8µs ± 8%	37.8µs ±10%	~	(p=1.000 n=7+6)
InterpretRecursionFib-2	2.33ms ± 9%	2.38ms ± 7%	~	(p=0.945 n=7+6)
QualifiedIdentifierCreation/One_level-2	2.46ns ± 9%	2.19ns ± 7%	−10.89%	(p=0.001 n=7+7)
	alloc/op		delta
NewInterpreter/new_interpreter-2	720B ± 0%	768B ± 0%	+6.67%	(p=0.001 n=7+7)
NewInterpreter/new_sub-interpreter-2	1.18kB ± 0%	1.24kB ± 0%	+5.44%	(p=0.001 n=7+7)
RuntimeFungibleTokenTransfer-2	273kB ± 0%	273kB ± 0%	+0.05%	(p=0.001 n=7+7)
RuntimeResourceDictionaryValues-2	4.05MB ± 0%	4.05MB ± 0%	~	(p=0.805 n=7+7)
QualifiedIdentifierCreation/One_level-2	0.00B	0.00B	~	(all equal)
QualifiedIdentifierCreation/Three_levels-2	64.0B ± 0%	64.0B ± 0%	~	(all equal)
CheckContractInterfaceFungibleTokenConformance-2	65.7kB ± 0%	65.7kB ± 0%	~	(all equal)
ContractInterfaceFungibleToken-2	26.5kB ± 0%	26.5kB ± 0%	~	(p=1.000 n=7+7)
InterpretRecursionFib-2	1.24MB ± 0%	1.24MB ± 0%	~	(p=0.455 n=6+6)
	allocs/op		delta
NewInterpreter/new_interpreter-2	11.0 ± 0%	12.0 ± 0%	+9.09%	(p=0.001 n=7+7)
NewInterpreter/new_sub-interpreter-2	36.0 ± 0%	38.0 ± 0%	+5.56%	(p=0.001 n=7+7)
RuntimeFungibleTokenTransfer-2	4.54k ± 0%	4.55k ± 0%	+0.11%	(p=0.001 n=7+7)
RuntimeResourceDictionaryValues-2	102k ± 0%	102k ± 0%	+0.00%	(p=0.010 n=7+7)
QualifiedIdentifierCreation/One_level-2	0.00	0.00	~	(all equal)
QualifiedIdentifierCreation/Three_levels-2	2.00 ± 0%	2.00 ± 0%	~	(all equal)
CheckContractInterfaceFungibleTokenConformance-2	1.07k ± 0%	1.07k ± 0%	~	(all equal)
ContractInterfaceFungibleToken-2	457 ± 0%	457 ± 0%	~	(all equal)
InterpretRecursionFib-2	25.0k ± 0%	25.0k ± 0%	~	(all equal)