Fix test generic_classes.sil

Author: aschwaighofer

test/IRGen/generic_classes.sil

@@ -415,5 +415,5 @@ entry(%c : $RootGeneric<Int32>):
 // CHECK:   ret %swift.metadata_response [[T1]]
 // CHECK: }
 
-// OSIZE: define hidden swiftcc %swift.metadata_response @"$s15generic_classes11RootGenericCMa"(i64 %0, %swift.type* {{.*}}) [[ATTRS:#[0-9]+]] {
+// OSIZE: define hidden swiftcc %swift.metadata_response @"$s15generic_classes11RootGenericCMa"(i64 %0, %swift.type* {{.*}}) [[ATTRS:#[0-9]+]] {{(section)?.*}}{
 // OSIZE: [[ATTRS]] = {{{.*}}noinline