Pass a MCSymbolELF to a few ELF only functions. NFC.

llvm-svn: 238868
diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
index 35c289d..a15b1ad 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
@@ -1022,7 +1022,7 @@
   }
 
   // Get .ARM.extab or .ARM.exidx section
-  const MCSymbol *Group = FnSection.getGroup();
+  const MCSymbolELF *Group = FnSection.getGroup();
   if (Group)
     Flags |= ELF::SHF_GROUP;
   MCSectionELF *EHSection =