iter next type: function
iter tag: [object RegExp String Iterator]
iter self: true
manual first done: false
manual first value: 1|1|1|a1b2|true
manual rest: [["2","2",3]]
non-global: TypeError:String.prototype.matchAll called with a non-global RegExp argument
string pattern: [["a",0],[".",1],["a",2]]
undefined pattern: [["",0],["",1],["",2]]
lastIndex seen: 2
lastIndex after: 2
named groups: x|x|0|xy
dynamic dispatch: 9|9|1
