Detemplatize the PATypeHandle class, which was only really instantiated on 'Type'.

llvm-svn: 6774
diff --git a/llvm/lib/Bytecode/Reader/ConstantReader.cpp b/llvm/lib/Bytecode/Reader/ConstantReader.cpp
index 80c6fc3..32874e2 100644
--- a/llvm/lib/Bytecode/Reader/ConstantReader.cpp
+++ b/llvm/lib/Bytecode/Reader/ConstantReader.cpp
@@ -139,7 +139,7 @@
 
   // Insert a bunch of opaque types to be resolved later...
   for (unsigned i = 0; i < NumEntries; ++i)
-    Tab.push_back(PATypeHandle<Type>(OpaqueType::get(), this));
+    Tab.push_back(PATypeHandle(OpaqueType::get(), this));
 
   // Loop through reading all of the types.  Forward types will make use of the
   // opaque types just inserted.