[es6] implement destructuring assignment

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index 86dbf1adb06459eb83b1604975f68e8804f4b384..a4bcd8ca300e55079ef5a1cf1a834769fdf856bf 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -2036,6 +2036,12 @@ void BytecodeGenerator::VisitLogicalAndExpression(BinaryOperation* binop) {
 }
 
 
+void BytecodeGenerator::VisitRewritableAssignmentExpression(
+    RewritableAssignmentExpression* expr) {
+  Visit(expr->expression());
+}
+
+
 void BytecodeGenerator::VisitNewLocalFunctionContext() {
   AccumulatorResultScope accumulator_execution_result(this);
   Scope* scope = this->scope();