integrate kernel constants with inference and ssa

[sigmundch]

No description provided.

[sigmundch]

update: Johnni started working on the integration with global inference (see https://dart-review.googlesource.com/c/sdk/+/97240)

[johnniwinther]

update: CFE constants are integrated in inference and ssa but work is still needed to fully support platform code with the new constants. This work (see https://dart-review.googlesource.com/c/sdk/+/97634) has already shown some bugs but more may come.

[sigmundch]

current status: Johnni tested enabling CFE constants on on the bots and believes most backend work is done. Only one issue with native typed arrays showed up, which he'll investigate tomorrow.

[sigmundch]

@johnniwinther - do you believe there is anything else to do on the dart2js side? Can we close this issue?

[johnniwinther]

We're done.