Editorial: replace two stray references to State with MatchState

spec.html

@@ -36641,7 +36641,7 @@ <h1>Notation</h1>
             A <dfn id="pattern-capturerange" variants="CaptureRanges">CaptureRange</dfn> is a Record { [[StartIndex]], [[EndIndex]] } that represents the range of characters included in a capture, where [[StartIndex]] is an integer representing the start index (inclusive) of the range within _Input_, and [[EndIndex]] is an integer representing the end index (exclusive) of the range within _Input_. For any CaptureRange, these indices must satisfy the invariant that [[StartIndex]] ≤ [[EndIndex]].
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-            A <dfn id="pattern-matchstate" variants="MatchStates">MatchState</dfn> is a Record { [[Input]], [[EndIndex]], [[Captures]] } where [[Input]] is a List of characters representing the String being matched, [[EndIndex]] is an integer, and [[Captures]] is a List of values, one for each left-capturing parenthesis in the pattern. States are used to represent partial match states in the regular expression matching algorithms. The [[EndIndex]] is one plus the index of the last input character matched so far by the pattern, while [[Captures]] holds the results of capturing parentheses. The _n_<sup>th</sup> element of [[Captures]] is either a CaptureRange representing the range of characters captured by the _n_<sup>th</sup> set of capturing parentheses, or *undefined* if the _n_<sup>th</sup> set of capturing parentheses hasn't been reached yet. Due to backtracking, many States may be in use at any time during the matching process.
+            A <dfn id="pattern-matchstate" variants="MatchStates">MatchState</dfn> is a Record { [[Input]], [[EndIndex]], [[Captures]] } where [[Input]] is a List of characters representing the String being matched, [[EndIndex]] is an integer, and [[Captures]] is a List of values, one for each left-capturing parenthesis in the pattern. MatchStates are used to represent partial match states in the regular expression matching algorithms. The [[EndIndex]] is one plus the index of the last input character matched so far by the pattern, while [[Captures]] holds the results of capturing parentheses. The _n_<sup>th</sup> element of [[Captures]] is either a CaptureRange representing the range of characters captured by the _n_<sup>th</sup> set of capturing parentheses, or *undefined* if the _n_<sup>th</sup> set of capturing parentheses hasn't been reached yet. Due to backtracking, many MatchStates may be in use at any time during the matching process.
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             A <dfn id="pattern-matchresult" variants="MatchResults">MatchResult</dfn> is either a MatchState or the special token ~failure~ that indicates that the match failed.