[debugger] Scope iterator should not visit inner function literals.

src/debug/debug-scopes.cc

Index: src/debug/debug-scopes.cc
diff --git a/src/debug/debug-scopes.cc b/src/debug/debug-scopes.cc
index 0acecaf853393c8cb5c2b40769c7115553c9bc57..ce9cac2046cd2c7879959c7b9831ed13763773ed 100644
--- a/src/debug/debug-scopes.cc
+++ b/src/debug/debug-scopes.cc
@@ -792,6 +792,11 @@ void ScopeIterator::CopyContextExtensionToScopeObject(
 
 void ScopeIterator::GetNestedScopeChain(Isolate* isolate, Scope* scope,
                                         int position) {
+  if (scope->is_function_scope()) {
+    // Do not collect scopes of nested inner functions inside the current one.
+    Handle<JSFunction> function = frame_inspector_->GetFunction();
+    if (scope->end_position() < function->shared()->end_position()) return;
+  }
   if (scope->is_hidden()) {
     // We need to add this chain element in case the scope has a context
     // associated. We need to keep the scope chain and context chain in sync.