Runs the deferredEnvOps of the function fn for the call call, which runs fn itself or through the chain of calls in the functions it runs, the last one calling fn: the names they compute from parameters resolve with the values the call of fn hands over, and an environment a free variable or a parameter names is the one it holds at call, if call runs fn itself, else only the global environment is known to be the same.
Runs the deferredEnvOps of the function
fnfor the callcall, which runsfnitself or through thechainof calls in the functions it runs, the last one callingfn: the names they compute from parameters resolve with the values the call offnhands over, and an environment a free variable or a parameter names is the one it holds atcall, ifcallrunsfnitself, else only the global environment is known to be the same.