[debugger] omit exception events for rethrown exceptions in async.

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/interpreter/bytecode-array-writer.h"
 #include "src/interpreter/bytecode-register-allocator.h"
@@ skipping 33 matching lines @@
     DCHECK_GE(local_register_count_, 0);
     return local_register_count_;
   }
 
   // Get number of contexts required for bytecode array.
   int context_count() const {
     DCHECK_GE(context_register_count_, 0);
     return context_register_count_;
   }
 
+  FunctionLiteral* literal() const { return literal_; }
+
   Register first_context_register() const;
   Register last_context_register() const;
 
   // Returns the number of fixed (non-temporary) registers.
   int fixed_register_count() const { return context_count() + locals_count(); }
 
   // Returns the number of fixed and temporary registers.
   int fixed_and_temporary_register_count() const {
     return fixed_register_count() + temporary_register_count();
   }
@@ skipping 289 matching lines @@
 
   Isolate* isolate_;
   Zone* zone_;
   bool bytecode_generated_;
   ConstantArrayBuilder constant_array_builder_;
   HandlerTableBuilder handler_table_builder_;
   bool return_seen_in_block_;
   int parameter_count_;
   int local_register_count_;
   int context_register_count_;
-  int return_position_;
+  FunctionLiteral* literal_;
   TemporaryRegisterAllocator temporary_allocator_;
   BytecodeArrayWriter bytecode_array_writer_;
   BytecodePipelineStage* pipeline_;
   BytecodeSourceInfo latest_source_info_;
 
   DISALLOW_COPY_AND_ASSIGN(BytecodeArrayBuilder);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_