Adding smi cache

src/ast/ast.h

Index: src/ast/ast.h
diff --git a/src/ast/ast.h b/src/ast/ast.h
index 669268946c2f166eb193074f1ecac43f777a7973..b8ec24d5da515a782be989856858b05a1984993c 100644
--- a/src/ast/ast.h
+++ b/src/ast/ast.h
@@ -3277,7 +3277,7 @@ class AstNodeFactory final BASE_EMBEDDED {
         Literal(ast_value_factory_->NewNumber(number, with_dot), pos);
   }
 
-  Literal* NewSmiLiteral(int number, int pos) {
+  Literal* NewSmiLiteral(uint32_t number, int pos) {
     return new (zone_) Literal(ast_value_factory_->NewSmi(number), pos);
   }