SubexpressionType 5212 src/parser.cc        SubexpressionType type = stored_state->group_type();
SubexpressionType 5276 src/parser.cc        SubexpressionType type = CAPTURE;
SubexpressionType  366 src/parser.h                         SubexpressionType group_type,
SubexpressionType  379 src/parser.h       SubexpressionType group_type() { return group_type_; }
SubexpressionType  391 src/parser.h       SubexpressionType group_type_;