Fix incorrect code indentation and silence dead store warning due to idiomatic code.

llvm-svn: 137870

clang/lib/AST/DeclPrinter.cpp

@@ -1002,6 +1002,8 @@ void DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) {
       Out << (first ? ' ' : ',') << "atomic";
       first = false;
     }
+    
+    (void) first; // Silence dead store warning due to idiomatic code.
     Out << " )";
   }
   Out << ' ' << PDecl->getType().getAsString(Policy) << ' ' << PDecl;