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/WinCOFFObjectWriter.cpp b/lib/MC/WinCOFFObjectWriter.cpp
index 4d3b59c..4052374 100644
--- a/lib/MC/WinCOFFObjectWriter.cpp
+++ b/lib/MC/WinCOFFObjectWriter.cpp
@@ -850,7 +850,7 @@
         assert(OS.tell() == (*i)->Header.PointerToRawData &&
                "Section::PointerToRawData is insane!");
 
-        Asm.WriteSectionData(j, Layout);
+        Asm.writeSectionData(j, Layout);
       }
 
       if ((*i)->Relocations.size() > 0) {