Fix a few 'no newline at end of file' warnings that Xcode emits

(Xcode even has a snazzy "Fix" button, but clicking that inserts two
newlines. So close!)

llvm-svn: 365789
diff --git a/clang/lib/AST/TextNodeDumper.cpp b/clang/lib/AST/TextNodeDumper.cpp
index 44c2612..cba9091 100644
--- a/clang/lib/AST/TextNodeDumper.cpp
+++ b/clang/lib/AST/TextNodeDumper.cpp
@@ -1939,4 +1939,4 @@
 
 void TextNodeDumper::VisitConceptDecl(const ConceptDecl *D) {
   dumpName(D);
-}
\ No newline at end of file
+}