Switch MCAssembler to method names starting w/ lower-case.

per http://llvm.org/docs/CodingStandards.html#ll_naming

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145873 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/ELFObjectWriter.cpp b/lib/MC/ELFObjectWriter.cpp
index bd28069..60b3638 100644
--- a/lib/MC/ELFObjectWriter.cpp
+++ b/lib/MC/ELFObjectWriter.cpp
@@ -1072,7 +1072,7 @@
       WriteBytes(cast<MCDataFragment>(F).getContents().str());
     }
   } else {
-    Asm.WriteSectionData(&SD, Layout);
+    Asm.writeSectionData(&SD, Layout);
   }
 }