Added the $262 object to Test262 test runner

[Razican]

This PR improves the Test262 runner by adding a preliminary version of the $262 global property.

After some trial and error, I saw we still need to implement #893, #1300 and #1301 to be able to implement the rest of the functions, and the agent record is even trickier, since it requires being able to run stuff concurrently (but in the same thread). For this we need an executor and an event queue capable of sleeping, stopping execution flow and continuing where we were, which is currently not possible.

In any case, It already brings improvements in testing: the cross-realm symbols and some extra tests now work as expected.

[github-actions]

Test262 conformance changes:

Test result	master count	PR count	difference
Total	78,897	78,897	0
Passed	26,719	26,783	+64
Ignored	15,628	15,628	0
Failed	36,550	36,486	-64
Panics	14	14	0
Conformance	33.87%	33.95%	+0.08%

Fixed tests:

test/language/global-code/script-decl-func-dups.js [strict mode] (previously Failed)
test/language/global-code/script-decl-func-dups.js (previously Failed)
test/language/expressions/tagged-template/cache-realm.js [strict mode] (previously Failed)
test/language/expressions/tagged-template/cache-realm.js (previously Failed)
test/annexB/language/expressions/logical-assignment/emulates-undefined-or.js [strict mode] (previously Failed)
test/annexB/language/expressions/logical-assignment/emulates-undefined-or.js (previously Failed)
test/annexB/language/expressions/logical-assignment/emulates-undefined-and.js [strict mode] (previously Failed)
test/annexB/language/expressions/logical-assignment/emulates-undefined-and.js (previously Failed)
test/annexB/language/expressions/logical-not/emulates-undefined.js [strict mode] (previously Failed)
test/annexB/language/expressions/logical-not/emulates-undefined.js (previously Failed)
test/annexB/language/expressions/typeof/emulates-undefined.js [strict mode] (previously Failed)
test/annexB/language/expressions/typeof/emulates-undefined.js (previously Failed)
test/annexB/language/expressions/logical-or/emulates-undefined.js [strict mode] (previously Failed)
test/annexB/language/expressions/logical-or/emulates-undefined.js (previously Failed)
test/annexB/language/expressions/does-not-equals/emulates-undefined.js [strict mode] (previously Failed)
test/annexB/language/expressions/does-not-equals/emulates-undefined.js (previously Failed)
test/annexB/language/expressions/equals/emulates-undefined.js [strict mode] (previously Failed)
test/annexB/language/expressions/equals/emulates-undefined.js (previously Failed)
test/annexB/language/expressions/logical-and/emulates-undefined.js [strict mode] (previously Failed)
test/annexB/language/expressions/logical-and/emulates-undefined.js (previously Failed)
test/annexB/language/expressions/conditional/emulates-undefined.js [strict mode] (previously Failed)
test/annexB/language/expressions/conditional/emulates-undefined.js (previously Failed)
test/annexB/language/statements/if/emulated-undefined.js [strict mode] (previously Failed)
test/annexB/language/statements/if/emulated-undefined.js (previously Failed)
test/annexB/built-ins/Array/from/iterator-method-emulates-undefined.js [strict mode] (previously Failed)
test/annexB/built-ins/Array/from/iterator-method-emulates-undefined.js (previously Failed)
test/built-ins/BigInt/prototype/valueOf/cross-realm.js [strict mode] (previously Failed)
test/built-ins/BigInt/prototype/valueOf/cross-realm.js (previously Failed)
test/built-ins/Symbol/isConcatSpreadable/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/isConcatSpreadable/cross-realm.js (previously Failed)
test/built-ins/Symbol/toPrimitive/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/toPrimitive/cross-realm.js (previously Failed)
test/built-ins/Symbol/asyncIterator/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/asyncIterator/cross-realm.js (previously Failed)
test/built-ins/Symbol/matchAll/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/matchAll/cross-realm.js (previously Failed)
test/built-ins/Symbol/match/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/match/cross-realm.js (previously Failed)
test/built-ins/Symbol/toStringTag/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/toStringTag/cross-realm.js (previously Failed)
test/built-ins/Symbol/iterator/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/iterator/cross-realm.js (previously Failed)
test/built-ins/Symbol/split/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/split/cross-realm.js (previously Failed)
test/built-ins/Symbol/replace/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/replace/cross-realm.js (previously Failed)
test/built-ins/Symbol/unscopables/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/unscopables/cross-realm.js (previously Failed)
test/built-ins/Symbol/species/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/species/cross-realm.js (previously Failed)
test/built-ins/Symbol/hasInstance/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/hasInstance/cross-realm.js (previously Failed)
test/built-ins/Symbol/search/cross-realm.js [strict mode] (previously Failed)
test/built-ins/Symbol/search/cross-realm.js (previously Failed)
test/built-ins/Array/length/define-own-prop-length-overflow-realm.js [strict mode] (previously Failed)
test/built-ins/Array/length/define-own-prop-length-overflow-realm.js (previously Failed)
test/built-ins/Array/prototype/filter/create-proto-from-ctor-realm-non-array.js [strict mode] (previously Failed)
test/built-ins/Array/prototype/filter/create-proto-from-ctor-realm-non-array.js (previously Failed)
test/built-ins/Array/prototype/map/create-proto-from-ctor-realm-array.js [strict mode] (previously Failed)
test/built-ins/Array/prototype/map/create-proto-from-ctor-realm-array.js (previously Failed)
test/built-ins/Array/prototype/slice/create-proto-from-ctor-realm-array.js [strict mode] (previously Failed)
test/built-ins/Array/prototype/slice/create-proto-from-ctor-realm-array.js (previously Failed)
test/built-ins/Array/prototype/concat/create-proto-from-ctor-realm-array.js [strict mode] (previously Failed)
test/built-ins/Array/prototype/concat/create-proto-from-ctor-realm-array.js (previously Failed)

[github-actions]

Benchmark for 19e8280

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	377.2±0.35ns	391.8±14.98ns	-3.73%
Arithmetic operations (Full)	300.8±15.43µs	301.3±12.99µs	-0.17%
Array access (Execution)	7.3±0.87µs	7.4±0.64µs	-1.35%
Array access (Full)	307.3±0.80µs	325.7±27.62µs	-5.65%
Array creation (Execution)	3.2±0.01ms	3.2±0.01ms	0.00%
Array creation (Full)	3.6±0.16ms	3.5±0.11ms	+2.86%
Array pop (Execution)	1013.9±3.30µs	1012.9±3.74µs	+0.10%
Array pop (Full)	1537.1±47.14µs	1595.8±79.58µs	-3.68%
Boolean Object Access (Execution)	5.7±0.01µs	5.7±0.01µs	0.00%
Boolean Object Access (Full)	299.0±0.59µs	310.3±0.41µs	-3.64%
Clean js (Execution)	663.1±2.73µs	659.9±3.26µs	+0.48%
Clean js (Full)	1049.5±41.75µs	1045.6±31.75µs	+0.37%
Clean js (Parser)	42.6±0.22µs	42.9±0.08µs	-0.70%
Create Realm	457.7±21.80ns	443.9±0.51ns	+3.11%
Dynamic Object Property Access (Execution)	5.6±0.01µs	5.6±0.02µs	0.00%
Dynamic Object Property Access (Full)	305.5±0.47µs	311.9±0.41µs	-2.05%
Expression (Parser)	7.9±0.26µs	7.6±0.01µs	+3.95%
Fibonacci (Execution)	932.9±59.34µs	904.7±70.65µs	+3.12%
Fibonacci (Full)	1250.7±53.19µs	1225.4±74.84µs	+2.06%
For loop (Execution)	23.7±1.71µs	23.2±0.07µs	+2.16%
For loop (Full)	333.3±24.30µs	328.4±0.63µs	+1.49%
For loop (Parser)	20.6±0.02µs	20.6±0.03µs	0.00%
Goal Symbols (Parser)	15.4±0.52µs	14.7±0.10µs	+4.76%
Hello World (Parser)	4.4±0.49µs	4.3±0.18µs	+2.33%
Long file (Parser)	838.5±19.04ns	826.0±0.60ns	+1.51%
Mini js (Execution)	620.3±32.46µs	596.8±6.67µs	+3.94%
Mini js (Full)	926.9±2.84µs	972.7±20.76µs	-4.71%
Mini js (Parser)	39.1±1.39µs	37.3±0.06µs	+4.83%
Number Object Access (Execution)	4.6±0.42µs	4.4±0.01µs	+4.55%
Number Object Access (Full)	295.7±0.46µs	301.5±0.59µs	-1.92%
Object Creation (Execution)	4.8±0.01µs	5.1±0.31µs	-5.88%
Object Creation (Full)	296.6±0.46µs	303.9±0.35µs	-2.40%
RegExp (Execution)	13.0±0.17µs	12.8±0.07µs	+1.56%
RegExp (Full)	315.2±0.38µs	321.2±0.62µs	-1.87%
RegExp Literal (Execution)	12.9±0.51µs	12.8±0.06µs	+0.78%
RegExp Literal (Full)	310.0±1.46µs	322.5±0.79µs	-3.88%
RegExp Literal Creation (Execution)	11.4±0.04µs	11.8±0.36µs	-3.39%
RegExp Literal Creation (Full)	323.4±24.41µs	312.6±0.75µs	+3.45%
Static Object Property Access (Execution)	5.2±0.09µs	5.0±0.02µs	+4.00%
Static Object Property Access (Full)	315.3±16.44µs	305.7±0.85µs	+3.14%
String Object Access (Execution)	7.8±0.02µs	7.7±0.03µs	+1.30%
String Object Access (Full)	306.8±0.35µs	311.5±0.36µs	-1.51%
String comparison (Execution)	7.0±0.03µs	7.2±0.25µs	-2.78%
String comparison (Full)	304.9±0.46µs	309.2±0.32µs	-1.39%
String concatenation (Execution)	5.8±0.02µs	5.8±0.02µs	0.00%
String concatenation (Full)	297.6±1.70µs	320.1±14.85µs	-7.03%
String copy (Execution)	4.3±0.01µs	4.7±0.22µs	-8.51%
String copy (Full)	291.2±0.37µs	297.6±0.34µs	-2.15%
Symbols (Execution)	3.7±0.01µs	3.9±0.15µs	-5.13%
Symbols (Full)	295.2±13.31µs	301.9±12.21µs	-2.22%

[github-actions]

Benchmark for 0995cee

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	334.7±16.54ns	325.6±12.38ns	+2.79%
Arithmetic operations (Full)	274.4±13.11µs	274.1±14.84µs	+0.11%
Array access (Execution)	6.8±0.40µs	6.8±0.37µs	0.00%
Array access (Full)	306.9±15.01µs	294.9±11.75µs	+4.07%
Array creation (Execution)	2.7±0.14ms	2.5±0.13ms	+8.00%
Array creation (Full)	3.1±0.20ms	2.9±0.13ms	+6.90%
Array pop (Execution)	877.6±42.68µs	822.6±34.18µs	+6.69%
Array pop (Full)	1318.3±52.05µs	1316.6±40.05µs	+0.13%
Boolean Object Access (Execution)	5.5±0.29µs	5.5±0.28µs	0.00%
Boolean Object Access (Full)	292.9±13.50µs	287.5±12.05µs	+1.88%
Clean js (Execution)	617.3±25.71µs	642.4±28.53µs	-3.91%
Clean js (Full)	912.3±48.41µs	906.7±32.75µs	+0.62%
Clean js (Parser)	40.8±2.00µs	42.4±2.19µs	-3.77%
Create Realm	394.7±18.49ns	398.2±26.51ns	-0.88%
Dynamic Object Property Access (Execution)	5.5±0.26µs	5.6±0.32µs	-1.79%
Dynamic Object Property Access (Full)	298.3±17.52µs	299.5±16.17µs	-0.40%
Expression (Parser)	6.6±0.25µs	6.8±0.53µs	-2.94%
Fibonacci (Execution)	862.0±38.89µs	909.8±34.16µs	-5.25%
Fibonacci (Full)	1168.9±63.94µs	1231.3±49.73µs	-5.07%
For loop (Execution)	22.2±1.38µs	23.5±0.95µs	-5.53%
For loop (Full)	306.1±10.49µs	308.6±11.81µs	-0.81%
For loop (Parser)	19.1±0.89µs	18.3±0.79µs	+4.37%
Goal Symbols (Parser)	13.0±0.60µs	12.8±0.61µs	+1.56%
Hello World (Parser)	3.7±0.24µs	3.7±0.22µs	0.00%
Long file (Parser)	746.4±36.75ns	751.4±52.47ns	-0.67%
Mini js (Execution)	543.6±20.28µs	534.8±26.97µs	+1.65%
Mini js (Full)	839.2±28.57µs	863.4±58.01µs	-2.80%
Mini js (Parser)	34.2±1.63µs	34.3±1.59µs	-0.29%
Number Object Access (Execution)	4.2±0.23µs	4.3±0.20µs	-2.33%
Number Object Access (Full)	292.7±14.02µs	282.6±10.99µs	+3.57%
Object Creation (Execution)	4.7±0.17µs	4.8±0.22µs	-2.08%
Object Creation (Full)	300.3±15.48µs	295.6±16.47µs	+1.59%
RegExp (Execution)	11.8±0.91µs	12.1±1.31µs	-2.48%
RegExp (Full)	309.5±17.57µs	314.6±18.68µs	-1.62%
RegExp Literal (Execution)	11.5±0.47µs	12.6±0.51µs	-8.73%
RegExp Literal (Full)	309.7±14.53µs	297.5±12.20µs	+4.10%
RegExp Literal Creation (Execution)	10.0±0.60µs	11.0±0.42µs	-9.09%
RegExp Literal Creation (Full)	307.9±21.16µs	292.6±9.69µs	+5.23%
Static Object Property Access (Execution)	5.0±0.27µs	5.1±0.26µs	-1.96%
Static Object Property Access (Full)	298.1±13.91µs	290.5±14.20µs	+2.62%
String Object Access (Execution)	7.7±0.40µs	7.4±0.43µs	+4.05%
String Object Access (Full)	293.9±12.34µs	294.9±14.54µs	-0.34%
String comparison (Execution)	6.9±0.37µs	6.8±0.27µs	+1.47%
String comparison (Full)	299.6±15.20µs	297.0±18.89µs	+0.88%
String concatenation (Execution)	5.5±0.25µs	6.1±0.87µs	-9.84%
String concatenation (Full)	289.7±17.46µs	288.2±16.21µs	+0.52%
String copy (Execution)	4.2±0.19µs	4.3±0.29µs	-2.33%
String copy (Full)	280.2±9.80µs	288.0±15.70µs	-2.71%
Symbols (Execution)	3.6±0.15µs	3.8±0.32µs	-5.26%
Symbols (Full)	285.5±26.54µs	279.8±28.64µs	+2.04%

[github-actions]

Benchmark for 0730b5d

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	301.5±0.14ns	316.6±4.51ns	-4.77%
Arithmetic operations (Full)	224.3±0.89µs	227.6±0.31µs	-1.45%
Array access (Execution)	5.4±0.02µs	5.6±0.01µs	-3.57%
Array access (Full)	246.6±0.52µs	252.9±0.32µs	-2.49%
Array creation (Execution)	2.4±0.00ms	2.3±0.01ms	+4.35%
Array creation (Full)	2.8±0.00ms	2.8±0.00ms	0.00%
Array pop (Execution)	788.9±1.89µs	741.5±2.06µs	+6.39%
Array pop (Full)	1238.9±2.58µs	1219.8±5.82µs	+1.57%
Boolean Object Access (Execution)	4.6±0.02µs	4.6±0.01µs	0.00%
Boolean Object Access (Full)	241.4±0.26µs	243.9±0.37µs	-1.03%
Clean js (Execution)	533.3±2.57µs	525.2±1.85µs	+1.54%
Clean js (Full)	802.8±2.27µs	816.5±3.27µs	-1.68%
Clean js (Parser)	36.4±0.21µs	36.0±0.06µs	+1.11%
Create Realm	357.0±0.86ns	358.7±0.26ns	-0.47%
Dynamic Object Property Access (Execution)	4.5±0.01µs	4.5±0.03µs	0.00%
Dynamic Object Property Access (Full)	243.1±0.47µs	246.9±0.75µs	-1.54%
Expression (Parser)	6.2±0.03µs	6.0±0.08µs	+3.33%
Fibonacci (Execution)	686.7±0.94µs	699.7±3.36µs	-1.86%
Fibonacci (Full)	946.8±1.23µs	972.0±5.46µs	-2.59%
For loop (Execution)	18.7±0.10µs	18.7±0.10µs	0.00%
For loop (Full)	255.7±0.42µs	260.7±0.34µs	-1.92%
For loop (Parser)	17.2±0.05µs	17.2±0.02µs	0.00%
Goal Symbols (Parser)	12.4±0.03µs	12.3±0.02µs	+0.81%
Hello World (Parser)	3.4±0.01µs	3.4±0.01µs	0.00%
Long file (Parser)	690.0±3.80ns	694.3±5.53ns	-0.62%
Mini js (Execution)	479.0±2.25µs	472.1±2.02µs	+1.46%
Mini js (Full)	747.2±3.33µs	761.6±3.24µs	-1.89%
Mini js (Parser)	31.6±0.07µs	31.5±0.04µs	+0.32%
Number Object Access (Execution)	3.6±0.01µs	3.6±0.00µs	0.00%
Number Object Access (Full)	238.0±0.36µs	239.7±0.76µs	-0.71%
Object Creation (Execution)	3.9±0.02µs	3.9±0.02µs	0.00%
Object Creation (Full)	238.5±0.30µs	245.7±0.74µs	-2.93%
RegExp (Execution)	9.8±0.03µs	9.7±0.03µs	+1.03%
RegExp (Full)	255.5±0.49µs	258.2±0.43µs	-1.05%
RegExp Literal (Execution)	9.7±0.08µs	9.7±0.04µs	0.00%
RegExp Literal (Full)	251.3±0.46µs	253.3±0.76µs	-0.79%
RegExp Literal Creation (Execution)	8.3±0.03µs	8.5±0.03µs	-2.35%
RegExp Literal Creation (Full)	244.9±0.50µs	246.9±0.79µs	-0.81%
Static Object Property Access (Execution)	4.1±0.01µs	4.1±0.01µs	0.00%
Static Object Property Access (Full)	243.2±0.28µs	247.8±0.71µs	-1.86%
String Object Access (Execution)	6.4±0.11µs	6.3±0.01µs	+1.59%
String Object Access (Full)	245.1±1.26µs	250.3±0.38µs	-2.08%
String comparison (Execution)	5.8±0.10µs	5.8±0.01µs	0.00%
String comparison (Full)	248.9±4.37µs	248.5±0.49µs	+0.16%
String concatenation (Execution)	4.6±0.01µs	4.6±0.02µs	0.00%
String concatenation (Full)	239.1±1.00µs	238.8±0.27µs	+0.13%
String copy (Execution)	3.6±0.01µs	3.5±0.03µs	+2.86%
String copy (Full)	232.6±0.46µs	235.6±5.18µs	-1.27%
Symbols (Execution)	3.0±0.02µs	3.0±0.01µs	0.00%
Symbols (Full)	228.6±0.66µs	230.1±0.38µs	-0.65%