Get rid of the name in HInvokeDynamic (just use the selector instead).

lib/compiler/implementation/ssa/optimize.dart

Index: lib/compiler/implementation/ssa/optimize.dart
diff --git a/lib/compiler/implementation/ssa/optimize.dart b/lib/compiler/implementation/ssa/optimize.dart
index a84aa70ea4a8f245bac67a57f63731d8694da729..04c0aba1b41fa9090d086582dd94687275bc45d6 100644
--- a/lib/compiler/implementation/ssa/optimize.dart
+++ b/lib/compiler/implementation/ssa/optimize.dart
@@ -228,7 +228,7 @@ class SsaConstantFolder extends HBaseVisitor implements OptimizationPhase {
     HType receiverType = types[node.receiver];
     if (receiverType.isExact()) {
       HBoundedType type = receiverType;
-      Element element = type.lookupMember(node.name);
+      Element element = type.lookupMember(node.selector.name);
       // TODO(ngeoffray): Also fold if it's a getter or variable.
       if (element != null && element.isFunction()) {
         if (node.selector.applies(element, compiler)) {
@@ -250,7 +250,6 @@ class SsaConstantFolder extends HBaseVisitor implements OptimizationPhase {
     HBoundedType type = types[node.inputs[1]];
     HInvokeDynamicMethod result = new HInvokeDynamicMethod(
         selector,
-        selector.name,
         node.inputs.getRange(1, node.inputs.length - 1));
     if (type.isExact()) {
       HBoundedType concrete = type;