[clang-tidy] Use const char* to compile with VC cl.exe.

Summary:
cl.exe does not accept constexpr char FuncBindingStr[] = ...

Differential Revision: https://reviews.llvm.org/D36761

llvm-svn: 311035
diff --git a/clang-tools-extra/clang-tidy/android/CloexecCheck.h b/clang-tools-extra/clang-tidy/android/CloexecCheck.h
index ff3e626..1c58a31 100644
--- a/clang-tools-extra/clang-tidy/android/CloexecCheck.h
+++ b/clang-tools-extra/clang-tidy/android/CloexecCheck.h
@@ -92,10 +92,10 @@
                            int N) const;
 
   /// Binding name of the FuncDecl of a function call.
-  static constexpr char FuncDeclBindingStr[] = "funcDecl";
+  static const char *FuncDeclBindingStr;
 
   /// Binding name of the function call expression.
-  static constexpr char FuncBindingStr[] = "func";
+  static const char *FuncBindingStr;
 };
 
 } // namespace android