[turbofan] Small cleanup on JSInliningHeuristic

Remove dead code and move a condition earlier, as discussed in
http://doc/1I1yzlXM79M7W5QfVjTwSSTEQsRCjdfo8cgSQXkeqlZQ#heading=h.e7x2k9l4bmi7

Bug: v8:9183
Change-Id: Iaba7233e47ee19d2be5501ce6046f3956532513c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1658155
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62157}

src/compiler/js-inlining-heuristic.cc

@@ -65,7 +65,7 @@ JSInliningHeuristic::Candidate JSInliningHeuristic::CollectFunctions(
       out.functions[n] = m.Ref(broker()).AsJSFunction();
       JSFunctionRef function = out.functions[n].value();
       if (function.IsSerializedForCompilation()) {
-        out.bytecode[n] = function.shared().GetBytecodeArray(), isolate();
+        out.bytecode[n] = function.shared().GetBytecodeArray();
       }
     }
     out.num_functions = value_input_count;
@@ -221,6 +221,11 @@ void JSInliningHeuristic::Finalize() {
     Candidate candidate = *i;
     candidates_.erase(i);
 
+    // Make sure we don't try to inline dead candidate nodes.
+    if (candidate.node->IsDead()) {
+      continue;
+    }
+
     // Make sure we have some extra budget left, so that any small functions
     // exposed by this function would be given a chance to inline.
     double size_of_candidate =
@@ -231,12 +236,9 @@ void JSInliningHeuristic::Finalize() {
       continue;
     }
 
-    // Make sure we don't try to inline dead candidate nodes.
-    if (!candidate.node->IsDead()) {
     Reduction const reduction = InlineCandidate(candidate, false);
     if (reduction.Changed()) return;
   }
-  }
 }
 
 namespace {