Implement JSON[ @@toStringTag ]

[HalidOdat]

It changes the following:

• Implement JSON[ @@toStringTag ]

[github-actions]

Test262 conformance changes:

Test result	master count	PR count	difference
Total	78,497	78,497	0
Passed	25,501	25,515	+14
Ignored	15,587	15,587	0
Failed	37,409	37,395	-14
Panics	12	13	+1
Conformance	32.49	32.50	+0.02%

[github-actions]

Benchmark for 0552c82

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	318.4±7.28ns	320.7±8.44ns	-0.72%
Arithmetic operations (Full)	247.6±11.70µs	247.2±4.96µs	+0.16%
Array access (Execution)	6.0±0.15µs	6.0±0.28µs	0.00%
Array access (Full)	270.2±5.57µs	267.8±30.66µs	+0.90%
Array creation (Execution)	2.5±0.11ms	2.5±0.08ms	0.00%
Array creation (Full)	2.7±0.07ms	2.7±0.07ms	0.00%
Array pop (Execution)	805.7±21.20µs	806.0±30.09µs	-0.04%
Array pop (Full)	1239.0±41.45µs	1226.3±40.53µs	+1.04%
Boolean Object Access (Execution)	5.3±0.16µs	5.2±0.20µs	+1.92%
Boolean Object Access (Full)	263.6±8.58µs	258.7±6.35µs	+1.89%
Clean js (Execution)	620.9±16.77µs	619.1±17.74µs	+0.29%
Clean js (Full)	896.0±27.51µs	883.0±18.18µs	+1.47%
Clean js (Parser)	40.5±1.00µs	41.3±0.92µs	-1.94%
Create Realm	412.0±14.49ns	407.6±14.91ns	+1.08%
Dynamic Object Property Access (Execution)	5.0±0.26µs	4.9±0.13µs	+2.04%
Dynamic Object Property Access (Full)	265.9±7.24µs	262.4±18.58µs	+1.33%
Expression (Parser)	6.2±0.18µs	6.1±0.16µs	+1.64%
Fibonacci (Execution)	795.2±26.55µs	802.5±15.76µs	-0.91%
Fibonacci (Full)	1015.8±24.96µs	1023.6±29.69µs	-0.76%
For loop (Execution)	20.8±0.57µs	21.2±0.55µs	-1.89%
For loop (Full)	281.0±8.04µs	276.8±7.25µs	+1.52%
For loop (Parser)	19.2±0.56µs	19.4±0.94µs	-1.03%
Goal Symbols (Parser)	13.4±0.31µs	13.5±0.28µs	-0.74%
Hello World (Parser)	3.6±0.11µs	3.6±0.10µs	0.00%
Long file (Parser)	712.3±50.83ns	722.4±42.34ns	-1.40%
Mini js (Execution)	551.2±19.45µs	547.4±10.71µs	+0.69%
Mini js (Full)	845.2±29.03µs	819.9±18.29µs	+3.09%
Mini js (Parser)	35.6±1.37µs	36.0±2.11µs	-1.11%
Number Object Access (Execution)	4.1±0.11µs	3.9±0.18µs	+5.13%
Number Object Access (Full)	258.4±9.13µs	253.8±15.88µs	+1.81%
Object Creation (Execution)	4.3±0.20µs	4.1±0.16µs	+4.88%
Object Creation (Full)	260.1±10.72µs	257.4±11.20µs	+1.05%
RegExp (Execution)	9.1±0.23µs	9.1±0.39µs	0.00%
RegExp (Full)	268.5±6.25µs	265.2±13.63µs	+1.24%
RegExp Literal (Execution)	10.4±0.32µs	10.4±0.35µs	0.00%
RegExp Literal (Full)	272.0±7.74µs	272.2±10.94µs	-0.07%
RegExp Literal Creation (Execution)	9.1±0.31µs	9.0±0.26µs	+1.11%
RegExp Literal Creation (Full)	269.8±19.42µs	258.3±12.01µs	+4.45%
Static Object Property Access (Execution)	4.5±0.10µs	4.4±0.13µs	+2.27%
Static Object Property Access (Full)	262.0±5.92µs	258.3±7.98µs	+1.43%
String Object Access (Execution)	7.2±0.30µs	7.1±0.26µs	+1.41%
String Object Access (Full)	268.4±9.86µs	266.3±15.93µs	+0.79%
String comparison (Execution)	6.2±0.26µs	6.1±0.21µs	+1.64%
String comparison (Full)	266.1±8.69µs	260.9±12.56µs	+1.99%
String concatenation (Execution)	5.1±0.16µs	5.0±0.17µs	+2.00%
String concatenation (Full)	262.5±13.27µs	249.8±10.68µs	+5.08%
String copy (Execution)	3.9±0.16µs	3.8±0.24µs	+2.63%
String copy (Full)	253.9±8.40µs	250.1±25.09µs	+1.52%
Symbols (Execution)	3.3±0.08µs	3.3±0.29µs	0.00%
Symbols (Full)	245.0±11.19µs	235.3±4.68µs	+4.12%