PSA: Change Builtins::Name to Builtin enum class

[Camillo Bruni]

Background: 

- We currently have a mix of passing builtin ids as int or Builtins::Name enums in various places.

- Additionally we sometimes pass code-handles to builtins in the macro assembler

Goal: 

Clean up the existing code to only use the new Builtin enum class and avoid creating handles to builtins altogether in the macro-assembler.

Code Impact: largish

- Mechanical renaming is required in various codegen related places

Programmer Impact: minimal

- Just use Builtin:kXXX instead of Builtins:kXXX

- All static methods will keep on living in Bultins and not in Builtin

Cheers,

Camillo

Camillo Bruni |

Software Engineer, V8 |

Google Germany GmbH |

Erika-Mann Str. 33, 80636 München

Registergericht und -nummer: Hamburg, HRB 86891 | Sitz der Gesellschaft: Hamburg | Geschäftsführer: Paul Manicle, Halimah DeLaine Prado

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