Matthias Clasen authored May 08, 2024 and Alice Mikhaylenko committed May 10, 2024

When we compute values, the provider we use ends up being the
style cascade. If we hit a parser error when parsing variable-bearing
property values at compute time, we emit the error on that provider.

By making the cascade propagate the error back to the proper css
provider that contains the section in question, we get it reported
back to the css editor in the inspector.