make the 'to match this' diagnostic a note.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59921 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PPExpressions.cpp b/lib/Lex/PPExpressions.cpp
index 3eedf8c..168c9d0 100644
--- a/lib/Lex/PPExpressions.cpp
+++ b/lib/Lex/PPExpressions.cpp
@@ -137,7 +137,7 @@
     if (LParenLoc.isValid()) {
       if (PeekTok.isNot(tok::r_paren)) {
         PP.Diag(PeekTok.getLocation(), diag::err_pp_missing_rparen);
-        PP.Diag(LParenLoc, diag::err_matching) << "(";
+        PP.Diag(LParenLoc, diag::note_matching) << "(";
         return true;
       }
       // Consume the ).
@@ -261,7 +261,7 @@
       if (PeekTok.isNot(tok::r_paren)) {
         PP.Diag(PeekTok.getLocation(), diag::err_pp_expected_rparen)
           << Result.getRange();
-        PP.Diag(Start, diag::err_matching) << "(";
+        PP.Diag(Start, diag::note_matching) << "(";
         return true;
       }
       DT.State = DefinedTracker::Unknown;
@@ -606,7 +606,7 @@
       if (PeekTok.isNot(tok::colon)) {
         PP.Diag(PeekTok.getLocation(), diag::err_expected_colon)
           << LHS.getRange(), RHS.getRange();
-        PP.Diag(OpLoc, diag::err_matching) << "?";
+        PP.Diag(OpLoc, diag::note_matching) << "?";
         return true;
       }
       // Consume the :.