Add parser support for __leave (sema and onward still missing).

llvm-svn: 212421
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index dc1cddc..6090d6d 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -3277,6 +3277,11 @@
   return SEHFinallyStmt::Create(Context,Loc,Block);
 }
 
+StmtResult
+Sema::ActOnSEHLeaveStmt(SourceLocation Loc, Scope *CurScope) {
+  return StmtError(Diag(Loc, diag::err_ms___leave_unimplemented));
+}
+
 StmtResult Sema::BuildMSDependentExistsStmt(SourceLocation KeywordLoc,
                                             bool IsIfExists,
                                             NestedNameSpecifierLoc QualifierLoc,