MC: Correct comment in ExportSymbol

No functionality changed, just make it so that the code _could_ be
uncommented.

llvm-svn: 212363
diff --git a/llvm/lib/MC/WinCOFFObjectWriter.cpp b/llvm/lib/MC/WinCOFFObjectWriter.cpp
index 2d4b758..a462c0d 100644
--- a/llvm/lib/MC/WinCOFFObjectWriter.cpp
+++ b/llvm/lib/MC/WinCOFFObjectWriter.cpp
@@ -551,7 +551,7 @@
   // This doesn't seem to be right. Strings referred to from the .data section
   // need symbols so they can be linked to code in the .text section right?
 
-  // return Asm.isSymbolLinkerVisible (&SymbolData);
+  // return Asm.isSymbolLinkerVisible(SymbolData.getSymbol());
 
   // For now, all non-variable symbols are exported,
   // the linker will sort the rest out for us.