Refactor rb_shape_transition_shape_capa to not accept capacity
This way the groth factor is encapsulated, which allows rb_shape_transition_shape_capa to be smarter about ideal sizes.
Refactor rb_shape_transition_shape_capa to not accept capacity
This way the groth factor is encapsulated, which allows
rb_shape_transition_shape_capa to be smarter about ideal sizes.