Simplify/make more explicit (by making less explicit in some ways) some function calls

llvm-svn: 297921
diff --git a/llvm/lib/MC/MCELFStreamer.cpp b/llvm/lib/MC/MCELFStreamer.cpp
index 0c786b2..de07912 100644
--- a/llvm/lib/MC/MCELFStreamer.cpp
+++ b/llvm/lib/MC/MCELFStreamer.cpp
@@ -143,7 +143,7 @@
   if (Grp)
     Asm.registerSymbol(*Grp);
 
-  this->MCObjectStreamer::ChangeSection(Section, Subsection);
+  changeSectionImpl(Section, Subsection);
   Asm.registerSymbol(*Section->getBeginSymbol());
 }