Mark await expressions as caught or uncaught

src/ast/ast.h

 // 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.
 
 #ifndef V8_AST_AST_H_
 #define V8_AST_AST_H_
 
 #include "src/ast/ast-types.h"
 #include "src/ast/ast-value-factory.h"
 #include "src/ast/modules.h"
@@ skipping 1968 matching lines @@
 // implemented in JavaScript (see "v8natives.js").
 class CallRuntime final : public Expression {
  public:
   ZoneList<Expression*>* arguments() const { return arguments_; }
   bool is_jsruntime() const { return function_ == NULL; }
 
   int context_index() const {
     DCHECK(is_jsruntime());
     return context_index_;
   }
+  void set_context_index(int index) {
+    DCHECK(is_jsruntime());
+    context_index_ = index;
+  }
   const Runtime::Function* function() const {
     DCHECK(!is_jsruntime());
     return function_;
   }
 
   static int num_ids() { return parent_num_ids() + 1; }
   BailoutId CallId() { return BailoutId(local_id(0)); }
 
   const char* debug_name() {
     return is_jsruntime() ? "(context function)" : function_->name;
@@ skipping 1138 matching lines @@
 
   TryCatchStatement* NewTryCatchStatementForDesugaring(Block* try_block,
                                                        Scope* scope,
                                                        Variable* variable,
                                                        Block* catch_block,
                                                        int pos) {
     return new (zone_) TryCatchStatement(
         try_block, scope, variable, catch_block, HandlerTable::DESUGARING, pos);
   }
 
+  TryCatchStatement* NewTryCatchStatementForAsyncAwait(Block* try_block,
+                                                       Scope* scope,
+                                                       Variable* variable,
+                                                       Block* catch_block,
+                                                       int pos) {
+    return new (zone_)
+        TryCatchStatement(try_block, scope, variable, catch_block,
+                          HandlerTable::ASYNC_AWAIT, pos);
+  }
+
   TryFinallyStatement* NewTryFinallyStatement(Block* try_block,
                                               Block* finally_block, int pos) {
     return new (zone_) TryFinallyStatement(try_block, finally_block, pos);
   }
 
   DebuggerStatement* NewDebuggerStatement(int pos) {
     return new (zone_) DebuggerStatement(pos);
   }
 
   EmptyStatement* NewEmptyStatement(int pos) {
@@ skipping 347 matching lines @@
                                     : NULL;                                   \
   }
 AST_NODE_LIST(DECLARE_NODE_FUNCTIONS)
 #undef DECLARE_NODE_FUNCTIONS
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_AST_AST_H_