Previously, the `transformed.blah` shortcut could only be used in top-level hbs statements like {{transformed.blah}}. When attempting to use it in a sub-expression like `{{concat "hello" transformed.world}}`, it would raise a "transformed is not defined" error.
This commit updates the shortcut logic to make `transformed.blah` and `attrs.blah` work consistently in all hbs expressions.
Co-authored-by: Jordan Vidrine <jordan@jordanvidrine.com>