Fix generics on setInternalHelperManager
Fix generics on setInternalHelperManager

Fixes the generic for Owner on setInternalHelperManager, so we can use
a generic that doesn't conflict with object

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