Start supporting fixed length and immutable lists.

dart/frog/leg/ssa/codegen.dart

Index: dart/frog/leg/ssa/codegen.dart
diff --git a/dart/frog/leg/ssa/codegen.dart b/dart/frog/leg/ssa/codegen.dart
index 851f500e80022ab9c7ef949960e8f47f4f520206..5bba9c469cc8682cf548591edb9eaf02d34739c1 100644
--- a/dart/frog/leg/ssa/codegen.dart
+++ b/dart/frog/leg/ssa/codegen.dart
@@ -798,6 +798,22 @@ class SsaCodeGenerator implements HVisitor {
   }
 
   void visitLiteralList(HLiteralList node) {
+    if (node.isConst) {

[floitsch, 2012/02/24 10:15:09]

You can keep this code (as otherwise you can't test this patch), but I will
remove it with my CTC changes.
const Arrays must go through the CTC as otherwise canonicalization is wrong.

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

Done.

+      SourceString name = new SourceString('makeLiteralListConst');
+      Element helper = compiler.findHelper(name);
+      compiler.registerStaticUse(helper);
+      beginExpression(JSPrecedence.CALL_PRECEDENCE);
+      buffer.add(compiler.namer.isolateAccess(helper));
+      buffer.add('(');
+      generateArrayLiteral(node);
+      buffer.add(')');
+      endExpression(JSPrecedence.CALL_PRECEDENCE);
+    } else {
+      generateArrayLiteral(node);
+    }
+  }
+
+  void generateArrayLiteral(HLiteralList node) {
     buffer.add('[');
     int len = node.inputs.length;
     for (int i = 0; i < len; i++) {