[async-functions] support await expressions in finally statements

src/ast/ast.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast/ast.h"
 
 #include <cmath>  // For isfinite.
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 1070 matching lines @@
 
 
 // static
 bool Literal::Match(void* literal1, void* literal2) {
   const AstValue* x = static_cast<Literal*>(literal1)->raw_value();
   const AstValue* y = static_cast<Literal*>(literal2)->raw_value();
   return (x->IsString() && y->IsString() && x->AsString() == y->AsString()) ||
          (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber());
 }
 
+const char* InternalVariable::name() const {
+  switch (type()) {
+    case kGeneratorObject:
+      return ".generator_object";
+    default:
+      break;
+  }
+  UNREACHABLE();
+  return nullptr;
+}
+
 const char* CallRuntime::debug_name() {
 #ifdef DEBUG
-  return NameForNativeContextIntrinsicIndex(context_index_);
+  return is_jsruntime() ? NameForNativeContextIntrinsicIndex(context_index_)
+                        : function_->name;
 #else
   return is_jsruntime() ? "(context function)" : function_->name;
 #endif  // DEBUG
 }
 
 }  // namespace internal
 }  // namespace v8