[strong] Refactor ObjectStrength into a replacement for strong boolean args

test/unittests/compiler/scheduler-unittest.cc

Index: test/unittests/compiler/scheduler-unittest.cc
diff --git a/test/unittests/compiler/scheduler-unittest.cc b/test/unittests/compiler/scheduler-unittest.cc
index b94cb03c00c44ba75e3e91f3bf5d6efd5d35ea27..1a5f5a621baab9e01a46f0dec0b324962a1a8122 100644
--- a/test/unittests/compiler/scheduler-unittest.cc
+++ b/test/unittests/compiler/scheduler-unittest.cc
@@ -657,9 +657,8 @@ TEST_F(SchedulerTest, BuildScheduleIfSplit) {
   Node* p3 = graph()->NewNode(common()->Parameter(2), graph()->start());
   Node* p4 = graph()->NewNode(common()->Parameter(3), graph()->start());
   Node* p5 = graph()->NewNode(common()->Parameter(4), graph()->start());
-  Node* cmp =
-      graph()->NewNode(js()->LessThanOrEqual(LanguageMode::SLOPPY), p1, p2, p3,
-                       p4, p5, graph()->start(), graph()->start());
+  Node* cmp = graph()->NewNode(js()->LessThanOrEqual(Strength::NORMAL), p1, p2,
+                               p3, p4, p5, graph()->start(), graph()->start());
   Node* branch = graph()->NewNode(common()->Branch(), cmp, graph()->start());
   Node* true_branch = graph()->NewNode(common()->IfTrue(), branch);
   Node* false_branch = graph()->NewNode(common()->IfFalse(), branch);