Merge pull request #74728 from eeckstein/fix-test

tests: add a missing codesign in devirtualize_existential.swift

Author: eeckstein

test/SILOptimizer/devirtualize_existential.swift

@@ -2,6 +2,7 @@
 
 // RUN: %empty-directory(%t) 
 // RUN: %target-build-swift -wmo -O -Xllvm -sil-disable-pass=FunctionSignatureOpts -module-name=test %s -o %t/a.out
+// RUN: %target-codesign %t/a.out
 // RUN: %target-run %t/a.out | %FileCheck %s -check-prefix=CHECK-OUTPUT
 // REQUIRES: executable_test