[leaks] Fix a leak recently introduced to the pragma handling. This

whole code would be better with std::unique_ptr managing the lifetimes
of the handlers, but I wanted to make a targeted fix to the leaks first.
With this change, all of the Clang preprocessor tests are leak free with
LSan.

llvm-svn: 207872

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/Lex/Pragma.cpp b/clang/lib/Lex/Pragma.cpp
index 97a08da8ef3..3e8a40312b4 100644
--- a/clang/lib/Lex/Pragma.cpp
+++ b/clang/lib/Lex/Pragma.cpp
@@ -1403,6 +1403,7 @@ void Preprocessor::IgnorePragmas() {
            "Invalid namespace, registered as a regular pragma handler!");
     if (PragmaHandler *Existing = STDCNamespace->FindHandler("", false)) {
       RemovePragmaHandler("STDC", Existing);
+      delete Existing;
     }
   }
   AddPragmaHandler("STDC", new EmptyPragmaHandler());