At Jim Grosbach's request detemplate Object/MachO.h.

We are still able to handle mixed endian objects by swapping one struct at a
time.

llvm-svn: 179778
diff --git a/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp b/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp
index ffe8712..29d91a0 100644
--- a/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp
+++ b/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp
@@ -233,7 +233,7 @@
     // On Darwin we may find DWARF in separate object file in
     // resource directory.
     ObjectFile *DbgObj = Obj;
-    if (isa<MachOObjectFileBase>(Obj)) {
+    if (isa<MachOObjectFile>(Obj)) {
       const std::string &ResourceName =
           getDarwinDWARFResourceForModule(ModuleName);
       ObjectFile *ResourceObj = getObjectFile(ResourceName);