Abort aborts the LegacyVM execution and sets the executing message return to the given `code`.

Abortf will stop the LegacyVM execution and return an error to the caller.

ExecutionPanic is used to abort vm execution with an exit code.

CallerPattern checks if the caller matches the pattern.

ExtendedInvocationContext is a set of convenience functions built on top external ABI calls.

InvocationContext is passed to the actors on each method call.

PatternContext is the context a pattern gets access to in order to determine if the caller matches.

Runtime has operations in the LegacyVM that are exposed to all actors.