Don't use -experimental-hermetic-seal-at-link -lto=llvm-full if -swift-stdlib-use-relative-protocol-witness-tables

Author: aschwaighofer

test/lit.cfg

@@ -1003,7 +1003,7 @@ if run_vendor == 'apple':
 
         # TODO: consider making the addition of these flags dependent on the CMake
         # setting for hermetic seal at link
-        if not config.swift_freestanding_is_darwin:
+        if not config.swift_freestanding_is_darwin and not config.swift_stdlib_use_relative_protocol_witness_tables:
             swift_execution_tests_extra_flags += ' -experimental-hermetic-seal-at-link -lto=llvm-full'
 
         if not config.swift_freestanding_is_darwin: