Convert the last uses of ErrorOr in include/llvm/Object.

llvm-svn: 315483
diff --git a/llvm/lib/Object/SymbolicFile.cpp b/llvm/lib/Object/SymbolicFile.cpp
index 1042d29..2e7f2cc 100644
--- a/llvm/lib/Object/SymbolicFile.cpp
+++ b/llvm/lib/Object/SymbolicFile.cpp
@@ -80,10 +80,12 @@
     if (!Obj || !Context)
       return std::move(Obj);
 
-    ErrorOr<MemoryBufferRef> BCData =
+    Expected<MemoryBufferRef> BCData =
         IRObjectFile::findBitcodeInObject(*Obj->get());
-    if (!BCData)
+    if (!BCData) {
+      consumeError(BCData.takeError());
       return std::move(Obj);
+    }
 
     return IRObjectFile::create(
         MemoryBufferRef(BCData->getBuffer(), Object.getBufferIdentifier()),