Improve fast-path in SimpleDateFormat.matchString()

Bug: 119913354
Test: atest core-tests:libcore.java.text.SimpleDateFormatTest#testMatchStringSortedMap_treeMap
Test: atest core-tests:libcore.java.text.SimpleDateFormatTest#testMatchStringSortedMap_treeMapWithCustomComparator
Change-Id: I7410915a459095b365c33b6df63d2e7af3b135ba
1 file changed