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Remove uses of deprecated constants and change int.parse to int.tryParse (#19575)

* Remove uses of deprecated constants
* Change int.parse to int.tryParse where appropriate
L
Leaf Petersen committed
32f94443cc3fc2e19f5b36ea09e486aac57a9328
Parent: 35346b4
Committed by GitHub <noreply@github.com> on 7/20/2018, 10:07:24 PM