Disable running some change tests on unsupported backends.

test/cctest/compiler/test-changes-lowering.cc

Index: test/cctest/compiler/test-changes-lowering.cc
diff --git a/test/cctest/compiler/test-changes-lowering.cc b/test/cctest/compiler/test-changes-lowering.cc
index 49645fd45257a39b52f45d198802bc892f1ee451..434102c92a9e05f7a03c1a17b2155936e6245215 100644
--- a/test/cctest/compiler/test-changes-lowering.cc
+++ b/test/cctest/compiler/test-changes-lowering.cc
@@ -304,6 +304,7 @@ TEST(RunChangeBitToBool) {
 
 
 #ifndef V8_TARGET_ARCH_ARM64
+#if V8_TURBOFAN_BACKEND
 // TODO(titzer): disabled on ARM64 because calling into the runtime to
 // allocate uses the wrong stack pointer.
 // TODO(titzer): disabled on ARM
@@ -409,4 +410,5 @@ TEST(RunChangeFloat64ToTagged) {
   }
 }
 
+#endif  // V8_TURBOFAN_BACKEND
 #endif  // !V8_TARGET_ARCH_ARM64