fix OOB slab panic when creating runnables on a did_save event

sway-lsp/src/core/session.rs

@@ -477,7 +477,18 @@ pub fn parse_project(
 
     if let Some(typed) = &session.compiled_program.read().typed {
         session.runnables.clear();
-        create_runnables(&session.runnables, typed, engines.de(), engines.se());
+        let path = uri.to_file_path().unwrap();
+        let program_id = program_id_from_path(&path, engines)?;
+        if let Some(metrics) = session.metrics.get(&program_id) {
+            // Check if the cached AST was returned by the compiler for the users workspace.
+            // If it was, then we need to use the original engines.
+            let engines = if metrics.reused_programs > 0 {
+                &*session.engines.read()
+            } else {
+                engines
+            };
+            create_runnables(&session.runnables, typed, engines.de(), engines.se());
+        }
     }
     Ok(())
 }

sway-lsp/src/handlers/notification.rs

@@ -111,7 +111,8 @@ pub async fn handle_did_change_text_document(
         session.clone(),
         &uri,
         Some(params.text_document.version),
-        true,
+        // TODO: Set this back to true once https://github.com/FuelLabs/sway/issues/6576 is fixed.
+        false,
         file_versions,
     );
     Ok(())