ObjectFile: Add support for mach-o-style dSYM companion files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139676 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Object/ObjectFile.cpp b/lib/Object/ObjectFile.cpp
index a7798df..69d8ed0 100644
--- a/lib/Object/ObjectFile.cpp
+++ b/lib/Object/ObjectFile.cpp
@@ -45,6 +45,7 @@
     case sys::Mach_O_DynamicLinker_FileType:
     case sys::Mach_O_Bundle_FileType:
     case sys::Mach_O_DynamicallyLinkedSharedLibStub_FileType:
+    case sys::Mach_O_DSYMCompanion_FileType:
       return createMachOObjectFile(Object);
     case sys::COFF_FileType:
       return createCOFFObjectFile(Object);