change DefaultLayout to TargetLayout inside member variables

llvm-svn: 173906
diff --git a/lld/lib/ReaderWriter/ELF/Writer.cpp b/lld/lib/ReaderWriter/ELF/Writer.cpp
index 15f167d..5e03baa 100644
--- a/lld/lib/ReaderWriter/ELF/Writer.cpp
+++ b/lld/lib/ReaderWriter/ELF/Writer.cpp
@@ -61,7 +61,7 @@
   std::unique_ptr<KindHandler> _referenceKindHandler;
   AtomToAddress _atomToAddressMap;
   llvm::BumpPtrAllocator _chunkAllocate;
-  DefaultLayout<ELFT> *_layout;
+  TargetLayout<ELFT> *_layout;
   Header<ELFT> *_Header;
   ProgramHeader<ELFT> *_programHeader;
   SymbolTable<ELFT> * _symtab;