[turbofan] Fix Node::TrimInputCount() followed by Node::AppendInput() bug.

src/compiler/node.h

Index: src/compiler/node.h
diff --git a/src/compiler/node.h b/src/compiler/node.h
index 46dd041f1fcad8127b667a91c8885e0a360a9ddb..aa0d393dbd7e9e765a0b4d7961148ac7e14a3d59 100644
--- a/src/compiler/node.h
+++ b/src/compiler/node.h
@@ -386,9 +386,7 @@ Node::Inputs::const_iterator Node::Inputs::end() const {
 }
 
 
-// A forward iterator to visit the uses edges of a node. The edges are returned
-// in
-// the order in which they were added as inputs.
+// A forward iterator to visit the uses edges of a node.
 class Node::UseEdges::iterator final {
  public:
   iterator(const iterator& other)
@@ -433,8 +431,7 @@ Node::UseEdges::iterator Node::UseEdges::end() const {
 }
 
 
-// A forward iterator to visit the uses of a node. The uses are returned in
-// the order in which they were added as inputs.
+// A forward iterator to visit the uses of a node.
 class Node::Uses::const_iterator final {
  public:
   typedef std::forward_iterator_tag iterator_category;