Add support for the new function-type syntax.

pkg/compiler/lib/src/elements/modelx.dart

Index: pkg/compiler/lib/src/elements/modelx.dart
diff --git a/pkg/compiler/lib/src/elements/modelx.dart b/pkg/compiler/lib/src/elements/modelx.dart
index 3e1057db8385d07387e1fd863498d2d0e8ff8d5e..0415d47b09095e28738cf0067d2f216a10ab321e 100644
--- a/pkg/compiler/lib/src/elements/modelx.dart
+++ b/pkg/compiler/lib/src/elements/modelx.dart
@@ -1344,7 +1344,7 @@ class TypedefElementX extends ElementX
   ResolutionTypedefType computeType(Resolution resolution) {
     if (thisTypeCache != null) return thisTypeCache;
     Typedef node = parseNode(resolution.parsingContext);
-    setThisAndRawTypes(createTypeVariables(node.typeParameters));
+    setThisAndRawTypes(createTypeVariables(node.templateParameters));
     ensureResolved(resolution);
     return thisTypeCache;
   }
@@ -1742,6 +1742,15 @@ class FormalElementX extends ElementX
       : this.identifier = identifier,
         super(identifier.source, elementKind, enclosingElement);
 
+  FormalElementX.unnamed(ElementKind elementKind,
+      FunctionTypedElement enclosingElement,
+      this.definitions)
+      : this.identifier = null,
+        super("<unnamed>", elementKind, enclosingElement);
+
+  /// Whether this is an unnamed parameter in a Function type.
+  bool get isUnnamed => identifier == null;
+
   FunctionTypedElement get functionDeclaration => enclosingElement;
 
   Modifiers get modifiers => definitions.modifiers;