Remove dangerous default parameter from machine Store operator.

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 9efd7d23a88dee8f7ab2c0f3d0fb0cc75a653fde..3eec14a91ead068c5adb7521a9be91a0b8b0736f 100644
--- a/test/cctest/compiler/test-changes-lowering.cc
+++ b/test/cctest/compiler/test-changes-lowering.cc
@@ -213,7 +213,8 @@ TEST(RunChangeTaggedToFloat64) {
   double result;
 
   t.BuildStoreAndLower(t.simplified()->ChangeTaggedToFloat64(),
-                       t.machine()->Store(kMachineFloat64), &result);
+                       t.machine()->Store(kMachineFloat64, kNoWriteBarrier),
+                       &result);
 
   if (Pipeline::SupportedTarget()) {
     FOR_INT32_INPUTS(i) {