Add smi_type, mint_type and double_type to the predefined types list for script snapshots.

vm/snapshot.cc

Index: vm/snapshot.cc
===================================================================
--- vm/snapshot.cc	(revision 11270)
+++ vm/snapshot.cc	(working copy)
@@ -61,6 +61,9 @@
     case kVoidType: return object_store->void_type();
     case kFunctionType: return object_store->function_type();
     case kNumberType: return object_store->number_type();
+    case kSmiType: return object_store->smi_type();
+    case kMintType: return object_store->mint_type();
+    case kDoubleType: return object_store->double_type();
     case kDoubleInterface: return object_store->double_interface();
     case kIntInterface: return object_store->int_interface();
     case kBoolInterface: return object_store->bool_interface();
@@ -88,6 +91,12 @@
     return kFunctionType;
   } else if (raw_type == object_store->number_type()) {
     return kNumberType;
+  } else if (raw_type == object_store->smi_type()) {
+    return kSmiType;
+  } else if (raw_type == object_store->mint_type()) {
+    return kMintType;
+  } else if (raw_type == object_store->double_type()) {
+    return kDoubleType;
   } else if (raw_type == object_store->double_interface()) {
     return kDoubleInterface;
   } else if (raw_type == object_store->int_interface()) {