Implement %= and assign a couple of tests.

runtime/vm/parser.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/parser.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/compiler_stats.h"
@@ skipping 5300 matching lines @@
     case Token::kASSIGN_ADD:
       return new BinaryOpNode(op_pos, Token::kADD, lhs, rhs);
     case Token::kASSIGN_SUB:
       return new BinaryOpNode(op_pos, Token::kSUB, lhs, rhs);
     case Token::kASSIGN_MUL:
       return new BinaryOpNode(op_pos, Token::kMUL, lhs, rhs);
     case Token::kASSIGN_TRUNCDIV:
       return new BinaryOpNode(op_pos, Token::kTRUNCDIV, lhs, rhs);
     case Token::kASSIGN_DIV:
       return new BinaryOpNode(op_pos, Token::kDIV, lhs, rhs);
+    case Token::kASSIGN_MOD:
+      return new BinaryOpNode(op_pos, Token::kMOD, lhs, rhs);
     case Token::kASSIGN_SAR:
       return new BinaryOpNode(op_pos, Token::kSAR, lhs, rhs);
     case Token::kASSIGN_SHL:
       return new BinaryOpNode(op_pos, Token::kSHL, lhs, rhs);
+    case Token::kASSIGN_SHR:
+      return new BinaryOpNode(op_pos, Token::kSHR, lhs, rhs);
     case Token::kASSIGN_OR:
       return new BinaryOpNode(op_pos, Token::kBIT_OR, lhs, rhs);
     case Token::kASSIGN_AND:
       return new BinaryOpNode(op_pos, Token::kBIT_AND, lhs, rhs);
     case Token::kASSIGN_XOR:
       return new BinaryOpNode(op_pos, Token::kBIT_XOR, lhs, rhs);
     default:
       ErrorMsg(op_pos, "Internal error: ExpandAssignableOp '%s' unimplemented",
           Token::Name(assignment_op));
       UNIMPLEMENTED();
@@ skipping 1931 matching lines @@
 }
 
 
 void Parser::SkipNestedExpr() {
   const bool saved_mode = SetAllowFunctionLiterals(true);
   SkipExpr();
   SetAllowFunctionLiterals(saved_mode);
 }
 
 }  // namespace dart