Stop forwarding (get|set)Aligment from MCSectionData to MCSection.

llvm-svn: 237956
diff --git a/llvm/lib/MC/ELFObjectWriter.cpp b/llvm/lib/MC/ELFObjectWriter.cpp
index 0e764de..cdd6b17 100644
--- a/llvm/lib/MC/ELFObjectWriter.cpp
+++ b/llvm/lib/MC/ELFObjectWriter.cpp
@@ -1347,7 +1347,7 @@
   for (const MCSectionData &SD : Asm) {
     MCSectionELF &Section = static_cast<MCSectionELF &>(SD.getSection());
 
-    uint64_t Padding = OffsetToAlignment(OS.tell(), SD.getAlignment());
+    uint64_t Padding = OffsetToAlignment(OS.tell(), Section.getAlignment());
     WriteZeros(Padding);
 
     // Remember the offset into the file for this section.