Add a ton of comments to rsx/hotreload, add snapshot testing, refactor a bit to simplify the crate (#2130)

Merge dynamic context and dynamic mapping, clean up the rsx hotreload logic, and add location data to the Rsx objects

packages/autofmt/src/writer.rs

@@ -262,6 +262,7 @@ impl<'a> Writer<'a> {
                 then_branch,
                 else_if_branch,
                 else_branch,
+                ..
             } = chain;
 
             write!(