Resolve warnings

[kateinoigakukun]

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[github-actions]

Time Change: +529ms (5%) 🔍

Total Time: 10,140ms

Test name	Duration	Change
Serialization/JavaScript function call through Wasm import	23ms	+5ms (23%)	🚨
Serialization/JavaScript function call through Wasm import with int	15ms	+1ms (8%)	🔍
Serialization/JavaScript function call from Swift	127ms	+21ms (16%)	⚠️
Serialization/Swift Int to JavaScript with call	1,067ms	+59ms (5%)	🔍
Serialization/Swift String to JavaScript with call	1,140ms	+73ms (6%)	🔍
Object heap/Increment and decrement RC	2,839ms	+163ms (5%)	🔍

View Unchanged

Test name	Duration	Change
Serialization/Swift Int to JavaScript with assignment	330ms	+15ms (4%)
Serialization/JavaScript Number to Swift Int	307ms	+9ms (2%)
Serialization/Swift String to JavaScript with assignment	389ms	+15ms (3%)
Serialization/JavaScript String to Swift String	3,883ms	+160ms (4%)

View Baselines

Test name	Duration
Serialization/Call JavaScript function directly	7ms
Serialization/Assign JavaScript number directly	3ms
Serialization/Call with JavaScript number directly	5ms
Serialization/Write JavaScript string directly	3ms
Serialization/Call with JavaScript string directly	3ms