ObjectiveC migrator: Add another family of factory 
methods which can be migrated to instancetype.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187672 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/IdentifierTable.cpp b/lib/Basic/IdentifierTable.cpp
index 3572930..b1a22ee 100644
--- a/lib/Basic/IdentifierTable.cpp
+++ b/lib/Basic/IdentifierTable.cpp
@@ -467,6 +467,7 @@
       break;
     case 'd':
       if (startsWithWord(name, "dictionary")) return OIT_Dictionary;
+      if (startsWithWord(name, "default")) return OIT_Singleton;
       break;
     case 'i':
       if (startsWithWord(name, "init")) return OIT_MemManage;
@@ -474,6 +475,10 @@
     case 'r':
       if (startsWithWord(name, "retain")) return OIT_MemManage;
       break;
+    case 's':
+      if (startsWithWord(name, "shared") ||
+          startsWithWord(name, "standard"))
+        return OIT_Singleton;
     default:
       break;
   }