Fixed global objects initialization order

[HalidOdat]

It changes the following:

• Fix the order of builtins (Object should be initialized before Array)
• Removed vec![] from builtins

This unblocks #434

[codecov]

Codecov Report

Merging #502 into master will decrease coverage by 0.18%.
The diff coverage is 24.00%.

@@            Coverage Diff             @@
##           master     #502      +/-   ##
==========================================
- Coverage   67.67%   67.48%   -0.19%     
==========================================
  Files         162      162              
  Lines        9867     9869       +2     
==========================================
- Hits         6677     6660      -17     
- Misses       3190     3209      +19     

Impacted Files	Coverage Δ
boa/src/builtins/mod.rs	26.92% <24.00%> (-73.08%)	⬇️

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[github-actions]

Benchmark for 9021bcf

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Array access (Execution)	25.6±0.97µs	26.9±3.46µs	-4.83%
Array creation (Execution)	6.8±0.09ms	6.8±0.14ms	0.00%
Array pop (Execution)	2.4±0.05ms	2.5±0.10ms	-4.00%
Boolean Object Access (Execution)	9.1±0.42µs	8.9±0.66µs	+2.25%
Create Realm	181.0±3.86µs	189.2±6.54µs	-4.33%
Dynamic Object Property Access (Execution)	11.8±0.77µs	12.3±0.96µs	-4.07%
Expression (Lexer)	2.1±0.28µs	2.0±0.07µs	+5.00%
Expression (Parser)	5.0±0.17µs	5.1±0.27µs	-1.96%
Fibonacci (Execution)	1984.0±79.83µs	2.1±0.04ms	-5.52%
For loop (Execution)	57.6±1.85µs	59.2±1.88µs	-2.70%
For loop (Lexer)	5.3±0.30µs	5.4±0.61µs	-1.85%
For loop (Parser)	13.5±0.64µs	13.5±0.20µs	0.00%
Hello World (Lexer)	923.9±21.25ns	913.7±31.48ns	+1.12%
Hello World (Parser)	2.2±0.07µs	2.2±0.06µs	0.00%
Long file (Parser)	6.1±0.12ms	6.1±0.10ms	0.00%
Number Object Access (Execution)	7.3±0.24µs	6.9±0.39µs	+5.80%
Object Creation (Execution)	10.5±0.34µs	10.7±0.24µs	-1.87%
RegExp (Execution)	77.7±6.58µs	77.5±2.52µs	+0.26%
RegExp Literal (Execution)	81.1±3.38µs	81.3±3.28µs	-0.25%
RegExp Literal Creation (Execution)	73.2±4.32µs	78.1±3.23µs	-6.27%
Static Object Property Access (Execution)	11.0±0.18µs	11.1±0.35µs	-0.90%
String Object Access (Execution)	15.8±0.91µs	15.8±0.52µs	0.00%
String comparison (Execution)	11.0±0.36µs	11.1±0.35µs	-0.90%
String concatenation (Execution)	9.2±0.26µs	8.9±0.45µs	+3.37%
String copy (Execution)	7.6±0.30µs	7.1±0.52µs	+7.04%
Symbols (Execution)	8.3±0.54µs	8.4±0.22µs	-1.19%

[Razican]

Looks perfect to me :)