Create source actors from Debugger API notifications

Co-authored-by: atbrakhi <atbrakhi@igalia.com>
Signed-off-by: Delan Azabani <dazabani@igalia.com>

components/shared/devtools/lib.rs

@@ -587,4 +587,5 @@ pub struct SourceInfo {
     pub worker_id: Option<WorkerId>,
     pub content: Option<String>,
     pub content_type: Option<String>,
+    pub spidermonkey_id: u32,
 }