[async-functions] support await expressions in finally statements

src/interpreter/bytecode-array-builder.h

 // Copyright 2015 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_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 #define V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 
 #include "src/ast/ast.h"
 #include "src/base/compiler-specific.h"
 #include "src/globals.h"
@@ skipping 55 matching lines @@
 
   // Returns the number of fixed and temporary registers.
   int total_register_count() const {
     DCHECK_LE(fixed_register_count(),
               register_allocator()->maximum_register_count());
     return register_allocator()->maximum_register_count();
   }
 
   Register Parameter(int parameter_index) const;
 
+  // Same as Parameter(0), but indicates intent
+  inline Register Receiver() const { return Parameter(0); }
+
   // Constant loads to accumulator.
   BytecodeArrayBuilder& LoadConstantPoolEntry(size_t entry);
   BytecodeArrayBuilder& LoadLiteral(v8::internal::Smi* value);
   BytecodeArrayBuilder& LoadLiteral(Handle<Object> object);
   BytecodeArrayBuilder& LoadUndefined();
   BytecodeArrayBuilder& LoadNull();
   BytecodeArrayBuilder& LoadTheHole();
   BytecodeArrayBuilder& LoadTrue();
   BytecodeArrayBuilder& LoadFalse();
 
@@ skipping 254 matching lines @@
   // Inserts a entry into an allocated constant pool entry.
   void InsertConstantPoolEntryAt(size_t entry, Handle<Object> object);
 
   void InitializeReturnPosition(FunctionLiteral* literal);
 
   void SetStatementPosition(Statement* stmt) {
     if (stmt->position() == kNoSourcePosition) return;
     latest_source_info_.MakeStatementPosition(stmt->position());
   }
 
-  void SetExpressionPosition(Expression* expr) {
-    if (expr->position() == kNoSourcePosition) return;
+  inline void SetExpressionPosition(Expression* expr) {
+    SetExpressionPosition(expr->position());
+  }
+
+  void SetExpressionPosition(int position) {
+    if (position == kNoSourcePosition) return;
     if (!latest_source_info_.is_statement()) {
       // Ensure the current expression position is overwritten with the
       // latest value.
-      latest_source_info_.MakeExpressionPosition(expr->position());
+      latest_source_info_.MakeExpressionPosition(position);
     }
   }
 
   void SetExpressionAsStatementPosition(Expression* expr) {
     if (expr->position() == kNoSourcePosition) return;
     latest_source_info_.MakeStatementPosition(expr->position());
   }
 
   bool RequiresImplicitReturn() const { return !return_seen_in_block_; }
 
@@ skipping 77 matching lines @@
   static int const kNoFeedbackSlot = 0;
 
   DISALLOW_COPY_AND_ASSIGN(BytecodeArrayBuilder);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_