Remove value check from ICData checks/house-keeping

runtime/vm/regexp_assembler.h

 // Copyright (c) 2014, 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.
 
 #ifndef VM_REGEXP_ASSEMBLER_H_
 #define VM_REGEXP_ASSEMBLER_H_
 
 #include "vm/assembler.h"
 #include "vm/intermediate_language.h"
 #include "vm/object.h"
@@ skipping 382 matching lines @@
                 Symbols::LessEqualOperator(), token_kind, 2);
         case Token::kGT: return InstanceCallDescriptor(
                 Symbols::RAngleBracket(), token_kind, 2);
         case Token::kGTE: return InstanceCallDescriptor(
                 Symbols::GreaterEqualOperator(), token_kind, 2);
         case Token::kNEGATE: return InstanceCallDescriptor(
                 Symbols::UnaryMinus(), token_kind, 1);
         case Token::kINDEX: return InstanceCallDescriptor(
                 Symbols::IndexToken(), token_kind, 2);
         case Token::kASSIGN_INDEX: return InstanceCallDescriptor(
-                Symbols::AssignIndexToken(), token_kind, 3);
+                Symbols::AssignIndexToken(), token_kind, 2);
         default:
           UNREACHABLE();
       }
       UNREACHABLE();
       return InstanceCallDescriptor(Symbols::Empty());
     }
 
     const String& name;
     Token::Kind token_kind;
     intptr_t checked_argument_count;
@@ skipping 226 matching lines @@
   IdAllocator temp_id_;
   IdAllocator arg_id_;
   IdAllocator local_id_;
   IdAllocator indirect_id_;
 };
 
 
 }  // namespace dart
 
 #endif  // VM_REGEXP_ASSEMBLER_H_