[es6] parse destructuring assignment

src/expression-classifier.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_EXPRESSION_CLASSIFIER_H
 #define V8_EXPRESSION_CLASSIFIER_H
 
 #include "src/messages.h"
 #include "src/scanner.h"
 #include "src/token.h"
@@ skipping 123 matching lines @@
   void RecordAssignmentPatternError(const Scanner::Location& loc,
                                     MessageTemplate::Template message,
                                     const char* arg = nullptr) {
     if (!is_valid_assignment_pattern()) return;
     invalid_productions_ |= AssignmentPatternProduction;
     assignment_pattern_error_.location = loc;
     assignment_pattern_error_.message = message;
     assignment_pattern_error_.arg = arg;
   }
 
+  void RecordPatternError(const Scanner::Location& loc,
+                          MessageTemplate::Template message,
+                          const char* arg = nullptr) {
+    RecordBindingPatternError(loc, message, arg);
+    RecordAssignmentPatternError(loc, message, arg);
+  }
+
   void RecordArrowFormalParametersError(const Scanner::Location& loc,
                                         MessageTemplate::Template message,
                                         const char* arg = nullptr) {
     if (!is_valid_arrow_formal_parameters()) return;
     invalid_productions_ |= ArrowFormalParametersProduction;
     arrow_formal_parameters_error_.location = loc;
     arrow_formal_parameters_error_.message = message;
     arrow_formal_parameters_error_.arg = arg;
   }
 
@@ skipping 77 matching lines @@
   Error arrow_formal_parameters_error_;
   Error duplicate_formal_parameter_error_;
   Error strict_mode_formal_parameter_error_;
   Error strong_mode_formal_parameter_error_;
   DuplicateFinder* duplicate_finder_;
 };
 }
 }  // v8::internal
 
 #endif  // V8_EXPRESSION_CLASSIFIER_H