[Test] Fix some IRGen tests on 32-bit archs (#63998)

rdar://106085702

Author: drexin

test/IRGen/prespecialized-metadata/class-fileprivate-inmodule-1arg-2ancs-1distinct_use-1st_anc_gen-1arg-1st_arg_con_int-2nd_anc_gen-1st-arg_subclass_arg.swift

@@ -127,7 +127,7 @@
 //         CHECK-SAME:   i32 {{(48|28)}},
 //         CHECK-SAME:   i16 {{(7|3)}},
 //         CHECK-SAME:   i16 0,
-//   CHECK-apple-SAME:   i32 {{(168|100)}},
+//   CHECK-apple-SAME:   i32 {{(168|96)}},
 // CHECK-unknown-SAME:   i32 144,
 //         CHECK-SAME:   i32 {{(24|12)}},
 //                   :   %swift.type_descriptor* bitcast (

test/IRGen/prespecialized-metadata/class-fileprivate-inmodule-1arg-2ancs-1distinct_use-1st_anc_gen-1arg-1st_arg_subclass_arg-2nd_anc_gen-1st-arg_con_int.swift

@@ -131,7 +131,7 @@
 //         CHECK-SAME:   i32 {{(56|36)}},
 //         CHECK-SAME:   i16 {{(7|3)}},
 //         CHECK-SAME:   i16 0,
-//   CHECK-apple-SAME:   i32 {{(168|100)}},
+//   CHECK-apple-SAME:   i32 {{(168|96)}},
 // CHECK-unknown-SAME:   i32 144,
 //         CHECK-SAME:   i32 {{(24|12)}},
 //                   :   %swift.type_descriptor* bitcast (