[async-functions] support await expressions in finally statements

src/ast/scopes.cc

Index: src/ast/scopes.cc
diff --git a/src/ast/scopes.cc b/src/ast/scopes.cc
index ad1c137753e475963467df4a934f414f9d649161..2a3cece7d9df16cbd8b103c2dba5c87f18bb8504 100644
--- a/src/ast/scopes.cc
+++ b/src/ast/scopes.cc
@@ -1349,6 +1349,18 @@ Scope* Scope::GetOuterScopeWithContext() {
   return scope;
 }
 
+bool Scope::HasLazilyParsedInnerFunctionScope() const {
+  for (Scope* scope = inner_scope_; scope; scope = scope->sibling_) {
+    if (scope->is_function_scope()) {
+      if (static_cast<DeclarationScope*>(scope)->was_lazily_parsed()) {
+        return true;
+      }
+    }
+    if (scope->HasLazilyParsedInnerFunctionScope()) return true;
+  }
+  return false;
+}
+
 Handle<StringSet> DeclarationScope::CollectNonLocals(
     ParseInfo* info, Handle<StringSet> non_locals) {
   VariableProxy* free_variables = FetchFreeVariables(this, info);