Start supporting fixed length and immutable lists.

dart/frog/leg/ssa/nodes.dart

 // 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.
 
 interface HVisitor<R> {
   R visitAdd(HAdd node);
   R visitBailoutTarget(HBailoutTarget node);
   R visitBitAnd(HBitAnd node);
   R visitBitNot(HBitNot node);
   R visitBitOr(HBitOr node);
@@ skipping 2102 matching lines @@
   HStaticStore(this.element, HInstruction value) : super(<HInstruction>[value]);
   toString() => 'static store ${element.name}';
   accept(HVisitor visitor) => visitor.visitStaticStore(this);
 
   int typeCode() => 25;
   bool typeEquals(other) => other is HStaticStore;
   bool dataEquals(HStaticStore other) => element == other.element;
 }
 
 class HLiteralList extends HInstruction {
-  HLiteralList(inputs) : super(inputs);
+  HLiteralList(inputs, this.isConst) : super(inputs);

[ngeoffray, 2012/02/24 13:24:33]

Please add a TODO(floitsch): remove 'isConst' once the CTC handles it.

[ahe, 2012/02/27 11:51:12]

Done.

   toString() => 'literal list';
   accept(HVisitor visitor) => visitor.visitLiteralList(this);
   HType computeType() => HType.ARRAY;
   bool hasExpectedType() => true;
+  final bool isConst;
 
   void prepareGvn() {
     assert(!hasSideEffects());
   }
 }
 
 class HIndex extends HInvokeStatic {
   HIndex(HStatic target, HInstruction receiver, HInstruction index)
       : super(Selector.INDEX, <HInstruction>[target, receiver, index]);
   toString() => 'index operator';
@@ skipping 114 matching lines @@
 
   HInstruction get expression() => inputs[0];
 
   HType computeType() => HType.BOOLEAN;
   bool hasExpectedType() => true;
 
   accept(HVisitor visitor) => visitor.visitIs(this);
 
   toString() => "$expression is $typeExpression";
 }