The compile_syntax_node was used by the syntax_test in case of error
to still cover the coverage, but commit e3908cfce6
made this function a noop when there is an error already.
The LSP does try to build an object tree even though there are error in
order to have the most information even in that case, so we must ensure
that it doesn't panic left and right.
This commit also fix some of these panics.
NOTE: This library is an internal crate of the Slint project.
This crate should not be used directly by applications using Slint.
You should use the slint crate instead.
WARNING: This crate does not follow the semver convention for versioning and can
only be used with version = "=x.y.z" in Cargo.toml.
60e7d54e67