Require asserts for AD tests using the debug-only flag (#27824)

Author: asuhan

test/AutoDiff/control_flow_sil.swift

@@ -1,5 +1,6 @@
 // RUN: %target-swift-frontend -emit-sil -verify -Xllvm -debug-only=differentiation 2>&1 %s | %FileCheck %s -check-prefix=CHECK-DATA-STRUCTURES
 // RUN: %target-swift-frontend -emit-sil -verify -Xllvm -sil-print-after=differentiation -o /dev/null 2>&1 %s | %FileCheck %s -check-prefix=CHECK-SIL
+// REQUIRES: asserts
 
 // TODO: Add FileCheck tests.
 

test/AutoDiff/forward_mode_sil.swift

@@ -1,5 +1,6 @@
 // RUN: %target-swift-frontend -emit-sil -verify -Xllvm -run-jvp-generation -Xllvm -debug-only=differentiation %s 2>&1 | %FileCheck %s -check-prefix=CHECK-DATA-STRUCTURES
 // RUN: %target-swift-frontend -emit-sil -verify -Xllvm -sil-print-after=differentiation -Xllvm -run-jvp-generation -o /dev/null 2>&1 %s | %FileCheck %s -check-prefix=CHECK-SIL
+// REQUIRES: asserts
 
 
 //===----------------------------------------------------------------------===//

test/AutoDiff/refcounting.swift

@@ -1,5 +1,6 @@
 // RUN: %target-swift-frontend -emit-sil -Xllvm -debug-only=differentiation 2>&1 %s | %FileCheck %s -check-prefix=CHECK-DATA-STRUCTURES
 // RUN: %target-swift-frontend -emit-sil -Xllvm -differentiation-skip-folding-differentiable-function-extraction %s | %FileCheck %s
+// REQUIRES: asserts
 
 public class NonTrivialStuff : Equatable {
   public init() {}