Add missing #include (#4513)

josh11b · web-flow · commit ada9564077d9 · 2024-11-12T16:53:41.000Z
Co-authored-by: Josh L &lt;josh11b@users.noreply.github.com&gt;
diff --git a/explorer/interpreter/type_utils.h b/explorer/interpreter/type_utils.h
@@ -5,6 +5,8 @@
 #ifndef CARBON_EXPLORER_INTERPRETER_TYPE_UTILS_H_
 #define CARBON_EXPLORER_INTERPRETER_TYPE_UTILS_H_
 
+#include <cstddef>
+
 #include "explorer/base/nonnull.h"
 
 namespace Carbon {
