Use simple loop tracking instead of size to determine if

lib/compiler/implementation/ssa/codegen.dart

Index: lib/compiler/implementation/ssa/codegen.dart
diff --git a/lib/compiler/implementation/ssa/codegen.dart b/lib/compiler/implementation/ssa/codegen.dart
index e43edf1800e0bf96b158403fc4c3c8e8b8417b59..55b17220829be4e42043c342814db8841907cc32 100644
--- a/lib/compiler/implementation/ssa/codegen.dart
+++ b/lib/compiler/implementation/ssa/codegen.dart
@@ -1607,13 +1607,21 @@ class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
       buffer.add(compiler.namer.instanceMethodInvocationName(
           currentLibrary, node.name, node.selector));
       visitArguments(node.inputs);
+      var inLoop = node.block.enclosingLoopHeader !== null;

[ngeoffray, 2012/06/12 11:11:09]

var -> bool

[Mads Ager (google), 2012/06/12 11:24:21]

Done.

       if (node.element !== null) {
         // If we know we're calling a specific method, register that
         // method only.
+        if (inLoop) {
+          backend.builder.functionsCalledInLoop.add(node.element);

[ngeoffray, 2012/06/12 11:11:09]

You should store the optimized selector (line 1624) instead. See my comment in
builder.dart.

[Mads Ager (google), 2012/06/12 11:24:21]

Done.

+        }
         world.registerDynamicInvocationOf(node.element);
       } else {
+        if (inLoop) {
+          backend.builder.selectorsCalledInLoop.add(node.name);
+        }
         world.registerDynamicInvocation(
-            node.name, getOptimizedSelectorFor(node, node.selector));
+            node.name,
+            getOptimizedSelectorFor(node, node.selector));
       }
     }
     endExpression(JSPrecedence.CALL_PRECEDENCE);