[turbofan] Introduce prediction for exception handlers.

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 543ea8a02416cb4dc5a81987c6c8afdeb0636d7b..b94cb03c00c44ba75e3e91f3bf5d6efd5d35ea27 100644
--- a/test/unittests/compiler/scheduler-unittest.cc
+++ b/test/unittests/compiler/scheduler-unittest.cc
@@ -1059,10 +1059,12 @@ TARGET_TEST_F(SchedulerTest, CallException) {
   Node* p0 = graph()->NewNode(common()->Parameter(0), start);
   Node* c1 = graph()->NewNode(&kMockCall, start);
   Node* ok1 = graph()->NewNode(common()->IfSuccess(), c1);
-  Node* ex1 = graph()->NewNode(common()->IfException(), c1);
+  Node* ex1 = graph()->NewNode(
+      common()->IfException(IfExceptionHint::kLocallyUncaught), c1);
   Node* c2 = graph()->NewNode(&kMockCall, ok1);
   Node* ok2 = graph()->NewNode(common()->IfSuccess(), c2);
-  Node* ex2 = graph()->NewNode(common()->IfException(), c2);
+  Node* ex2 = graph()->NewNode(
+      common()->IfException(IfExceptionHint::kLocallyUncaught), c2);
   Node* hdl = graph()->NewNode(common()->Merge(2), ex1, ex2);
   Node* m = graph()->NewNode(common()->Merge(2), ok2, hdl);
   Node* phi = graph()->NewNode(common()->Phi(kMachAnyTagged, 2), c2, p0, m);