Fix visualizer
Fix visualizer

Sometimes we may encounter inner blocks that are not used in the first
render (e.g. `{{#if …}}…{{else}}…{{/if}}`, one of the templates might
never have been invoked), so we need to make sure we compile them.
chadhietala/glimmer,glimmerjs/glimmer-vm,tildeio/glimmer,tildeio/glimmer,glimmerjs/glimmer-vm,chadhietala/glimmer,lbdm44/glimmer-vm,tildeio/glimmer,chadhietala/glimmer,lbdm44/glimmer-vm,lbdm44/glimmer-vm,chadhietala/glimmer,glimmerjs/glimmer-vm