[C++11] Use 'nullptr'. Analysis edition.

llvm-svn: 209191
diff --git a/clang/lib/Analysis/FormatStringParsing.h b/clang/lib/Analysis/FormatStringParsing.h
index 6b25123..fba3180 100644
--- a/clang/lib/Analysis/FormatStringParsing.h
+++ b/clang/lib/Analysis/FormatStringParsing.h
@@ -53,14 +53,14 @@
   bool Stop;
 public:
   SpecifierResult(bool stop = false)
-  : Start(0), Stop(stop) {}
+  : Start(nullptr), Stop(stop) {}
   SpecifierResult(const char *start,
                   const T &fs)
   : FS(fs), Start(start), Stop(false) {}
   
   const char *getStart() const { return Start; }
   bool shouldStop() const { return Stop; }
-  bool hasValue() const { return Start != 0; }
+  bool hasValue() const { return Start != nullptr; }
   const T &getValue() const {
     assert(hasValue());
     return FS;