Fix array_pod_sort predicates after LLVM change.

llvm-svn: 191176
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 28a5a42..a487922 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -1861,12 +1861,10 @@
 };
 } // end anonymous namespace
 
-static int compareMacroDirectives(const void *XPtr, const void *YPtr) {
-  const std::pair<const IdentifierInfo *, MacroDirective *> &X =
-    *(const std::pair<const IdentifierInfo *, MacroDirective *>*)XPtr;
-  const std::pair<const IdentifierInfo *, MacroDirective *> &Y =
-    *(const std::pair<const IdentifierInfo *, MacroDirective *>*)YPtr;
-  return X.first->getName().compare(Y.first->getName());
+static int compareMacroDirectives(
+    const std::pair<const IdentifierInfo *, MacroDirective *> *X,
+    const std::pair<const IdentifierInfo *, MacroDirective *> *Y) {
+  return X->first->getName().compare(Y->first->getName());
 }
 
 static bool shouldIgnoreMacro(MacroDirective *MD, bool IsModule,