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

llvm-svn: 357359
diff --git a/clang/lib/Frontend/TextDiagnostic.cpp b/clang/lib/Frontend/TextDiagnostic.cpp
index c7ed3f3..c6ebdca 100644
--- a/clang/lib/Frontend/TextDiagnostic.cpp
+++ b/clang/lib/Frontend/TextDiagnostic.cpp
@@ -333,8 +333,7 @@
 
   // No special characters are allowed in CaretLine.
   assert(CaretLine.end() ==
-         std::find_if(CaretLine.begin(), CaretLine.end(),
-                      [](char c) { return c < ' ' || '~' < c; }));
+         llvm::find_if(CaretLine, [](char c) { return c < ' ' || '~' < c; }));
 
   // Find the slice that we need to display the full caret line
   // correctly.