Respect setLibraryDebuggable

runtime/observatory/lib/src/service/object.dart

Index: runtime/observatory/lib/src/service/object.dart
diff --git a/runtime/observatory/lib/src/service/object.dart b/runtime/observatory/lib/src/service/object.dart
index 51ac8eb94e45e827c014551424839fb8c99aad80..85d938532a34d7ac54332178a686b3655ede4761 100644
--- a/runtime/observatory/lib/src/service/object.dart
+++ b/runtime/observatory/lib/src/service/object.dart
@@ -2256,7 +2256,8 @@ class Library extends HeapObject implements M.Library {
   final classes = <Class>[];
   final variables = <Field>[];
   final functions = <ServiceFunction>[];
-
+  bool _debuggable;
+  bool get debuggable => _debuggable;
   bool get immutable => false;
 
   bool isDart(String libraryName) {
@@ -2284,6 +2285,7 @@ class Library extends HeapObject implements M.Library {
       return;
     }
     _loaded = true;
+    _debuggable = map['debuggable'];
     dependencies.clear();
     dependencies.addAll(map["dependencies"].map(LibraryDependency._fromMap));
     scripts.clear();