Remove old concepts parsing code

Summary:
This is so we can implement concepts per P0734R0. Relevant failing test
cases are disabled.

Reviewers: hubert.reinterpretcast, rsmith, saar.raz, nwilson

Reviewed By: saar.raz

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D40380

Patch by Changyu Li!

llvm-svn: 319992

1 files changed, 0 insertions, 12 deletions

diff --git a/clang/lib/Sema/DeclSpec.cpp b/clang/lib/Sema/DeclSpec.cpp
index bce493989d2..6fe2dcc9895 100644
--- a/clang/lib/Sema/DeclSpec.cpp
+++ b/clang/lib/Sema/DeclSpec.cpp
@@ -969,18 +969,6 @@ bool DeclSpec::SetConstexprSpec(SourceLocation Loc, const char *&PrevSpec,
   return false;
 }
 
-bool DeclSpec::SetConceptSpec(SourceLocation Loc, const char *&PrevSpec,
-                              unsigned &DiagID) {
-  if (Concept_specified) {
-    DiagID = diag::ext_duplicate_declspec;
-    PrevSpec = "concept";
-    return true;
-  }
-  Concept_specified = true;
-  ConceptLoc = Loc;
-  return false;
-}
-
 void DeclSpec::SaveWrittenBuiltinSpecs() {
   writtenBS.Sign = getTypeSpecSign();
   writtenBS.Width = getTypeSpecWidth();