Allow numeric literals to be checked for a decimal point.

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 3a3d896262b14ddb04b0f7664d895691ff94aff0..3f848aeaa43bb5cce5cf466a54aefb5b73bb75e8 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -3372,9 +3372,9 @@ class AstNodeFactory final BASE_EMBEDDED {
     return new (zone_) Literal(zone_, ast_value_factory_->NewSymbol(name), pos);
   }
 
-  Literal* NewNumberLiteral(double number, int pos) {
+  Literal* NewNumberLiteral(double number, int pos, bool with_dot = false) {
     return new (zone_)
-        Literal(zone_, ast_value_factory_->NewNumber(number), pos);
+        Literal(zone_, ast_value_factory_->NewNumber(number, with_dot), pos);
   }
 
   Literal* NewSmiLiteral(int number, int pos) {