Add a new reflection section for multi-payload enum mask information

Differential Revision: https://reviews.llvm.org/D120151

Author: rastogishubham

llvm/include/llvm/BinaryFormat/Swift.def

@@ -30,3 +30,4 @@ HANDLE_SWIFT_SECTION(protocs, "__swift5_protos", "swift5_protocols",
                      ".sw5prt$B")
 HANDLE_SWIFT_SECTION(acfuncs, "__swift5_acfuncs", "swift5_accessible_functions",
                      ".sw5acfn$B")
+HANDLE_SWIFT_SECTION(mpenum, "__swift5_mpenum", "swift5_mpenum", ".sw5mpen$B")