Use internal `assign` from `@glimmer/utils`
Use internal `assign` from `@glimmer/utils`

The project already has handling for using `Object.assign` if available
and a polyfill if not; use it!

glimmerjs/glimmer-vm,tildeio/glimmer,glimmerjs/glimmer-vm,tildeio/glimmer,glimmerjs/glimmer-vm,tildeio/glimmer