refactor(ast_codegen): abstract passes and generators behind `Runner`… #12984

Job	Run time
Benchmark (lexer)	1m 27s
Benchmark (parser)	1m 22s
Benchmark (transformer)	2m 23s
Benchmark (isolated_declarations)	1m 49s
Build Linter Benchmark	4m 48s
Benchmark (semantic)	1m 52s
Benchmark (minifier)	2m 6s
Benchmark (codegen)	1m 24s
Benchmark (sourcemap)	1m 27s
Benchmark linter (0)	1m 36s
Benchmark linter (1)	1m 49s
Upload benchmarks	14s
	22m 17s

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