# Functions
AsError returns r as error, converting it when necessary.
AsErrorString returns error message, converting it when necessary.
PanicIfErr throws a panic if any of the passed args is a non nil error.
RuntimeCaller returns a runtime stack frame for caller.
RuntimeCallers returns a runtime stack for callers.
# Type aliases
RuntimeFrame represents a program counter inside a runtime stack frame.
RuntimeStack represents a runtime stack of program counters.