[turbofan] Deferred block spilling heuristic - first step.

src/compiler/greedy-allocator.h

Index: src/compiler/greedy-allocator.h
diff --git a/src/compiler/greedy-allocator.h b/src/compiler/greedy-allocator.h
index c4e330eb97cc0425d4ec7de4fdb7e0fe5d938fb9..8482dd90be479e8c11872f0d95d2d60408768f6f 100644
--- a/src/compiler/greedy-allocator.h
+++ b/src/compiler/greedy-allocator.h
@@ -22,11 +22,15 @@ class AllocationCandidate {
 
   // Strict ordering operators
   bool operator<(const AllocationCandidate& other) const {
-    return range_->GetSize() < other.range_->GetSize();
+    DCHECK(range_->IsSizeValid());
+    DCHECK(other.range_->IsSizeValid());
+    return range_->size() < other.range_->size();
   }
 
   bool operator>(const AllocationCandidate& other) const {
-    return range_->GetSize() > other.range_->GetSize();
+    DCHECK(range_->IsSizeValid());
+    DCHECK(other.range_->IsSizeValid());
+    return range_->size() > other.range_->size();
   }
 
   LiveRange* live_range() const { return range_; }