rb_big_lshift     132 include/ruby/intern.h VALUE rb_big_lshift(VALUE, VALUE);
rb_big_lshift    4175 numeric.c      	return rb_big_lshift(rb_int2big(val), y);
rb_big_lshift    4187 numeric.c      	return rb_big_lshift(rb_int2big(val), ULONG2NUM(width));
rb_big_lshift    4200 numeric.c      	return rb_big_lshift(x, y);