Revert "[vm] Repair the resolver abstraction."

This reverts commit 3fd124db1ff303e334bf5a0a20c7a0e382360fbc.

Reason for revert: Provokes existing bug in hot reload call site reset

Original change's description:
> [vm] Repair the resolver abstraction.
> 
>  - Move resolution logic that accumulated in the runtime entries into Resolver.
>  - Improve NoSuchMethodError for closures when --no-lazy-dispatchers
>  - Fix concurrent modification of Null class by nullability propagation.
> 
> Change-Id: Id979459bea43d318a4bb8fd904ef7f23e2711342
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97846
> Commit-Queue: Ryan Macnak <rmacnak@google.com>
> Reviewed-by: Régis Crelier <regis@google.com>

TBR=rmacnak@google.com,alexmarkov@google.com,asiva@google.com,regis@google.com

Change-Id: Ife28f28fff7394dca3fc27e2745370030572720e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98427
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>