Range-style std::find{,_if} -> llvm::find{,_if}. NFC

llvm-svn: 357359
diff --git a/clang/lib/Lex/PPDirectives.cpp b/clang/lib/Lex/PPDirectives.cpp
index 16d61c7..3aae6ae 100644
--- a/clang/lib/Lex/PPDirectives.cpp
+++ b/clang/lib/Lex/PPDirectives.cpp
@@ -2210,8 +2210,7 @@
 
       // If this is already used as a parameter, it is used multiple times (e.g.
       // #define X(A,A.
-      if (std::find(Parameters.begin(), Parameters.end(), II) !=
-          Parameters.end()) {  // C99 6.10.3p6
+      if (llvm::find(Parameters, II) != Parameters.end()) { // C99 6.10.3p6
         Diag(Tok, diag::err_pp_duplicate_name_in_arg_list) << II;
         return true;
       }