Rename Type to DartType to avoid conflicts with the class Type in the core library.

lib/compiler/implementation/ssa/ssa.dart

Index: lib/compiler/implementation/ssa/ssa.dart
diff --git a/lib/compiler/implementation/ssa/ssa.dart b/lib/compiler/implementation/ssa/ssa.dart
index fa726c101104341617a99641102e6ae4ae77812a..40cc1bbb543119cdb198ce3490a7efe281b1029f 100644
--- a/lib/compiler/implementation/ssa/ssa.dart
+++ b/lib/compiler/implementation/ssa/ssa.dart
@@ -31,7 +31,7 @@
 #source('value_set.dart');
 
 class RuntimeTypeInformation {
-  bool hasTypeArguments(Type type) {
+  bool hasTypeArguments(DartType type) {
     if (type is InterfaceType) {
       InterfaceType interfaceType = type;
       return !interfaceType.arguments.isEmpty();