[Truffle] Implemented Regexp#match_start for strscan. #2638
+73
−80
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This passes the match_start_spec.rb which isn't in our repo currently: https://github.com/rubinius/rubinius/blob/58d397733b6ec1ae003b296ba4ab27a65e8629dc/spec/core/regexp/match_start_spec.rb
It would be nice to have more specs for this method to ensure correctness.