runtime+macro: r5js.ProcCall#evalAndAdvance: don't pass Continuations directly.
runtime: r5js.ProcCall#cpsify: pass ProcCallLike, not Continuation.
runtime: r5js.procspec.PrimitiveProcedure_#call: don't pass Continuations.
runtime: r5js.ProcCall#bindResult: don't pass Continuations directly.
runtime: r5js.Procedure#isTailCall_: pass ProcCallLike, not Continuation.