Switch from `typedef` to `using` in C++ code. NFC (#5258)

This is more modern and (IMHO) easier to read than that old C typedef
syntax.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/dataflow/graph.h b/src/dataflow/graph.h
index 0380adf14..6bd01d895 100644
--- a/src/dataflow/graph.h
+++ b/src/dataflow/graph.h
@@ -84,7 +84,7 @@ struct Graph : public UnifiedExpressionVisitor<Graph, Node*> {
   // When we are in unreachable code (i.e., a path that does not
   // need to be merged in anywhere), we set the length of this
   // vector to 0 to indicate that.
-  typedef std::vector<Node*> Locals;
+  using Locals = std::vector<Node*>;
 
   // The current local state in the control flow path being emitted.
   Locals locals;
diff --git a/src/dataflow/users.h b/src/dataflow/users.h
index faa41f7f9..d8bee8ac4 100644
--- a/src/dataflow/users.h
+++ b/src/dataflow/users.h
@@ -34,7 +34,7 @@ namespace wasm::DataFlow {
 // where y, z etc. are nodes that use x, that is, x is in their
 // values vector.
 class Users {
-  typedef std::unordered_set<DataFlow::Node*> UserSet;
+  using UserSet = std::unordered_set<DataFlow::Node*>;
 
   std::unordered_map<DataFlow::Node*, UserSet> users;