remove ignore in res_scanner (#7280)

Author: tsnobip

CHANGELOG.md

@@ -24,6 +24,10 @@
 - Fix completion for application with tagged template. https://github.com/rescript-lang/rescript/pull/7278
 - Fix error message for arity in the presence of optional arguments. https://github.com/rescript-lang/rescript/pull/7284
 
+#### :house: Internal
+
+- Remove ignore in res_scanner.ml . https://github.com/rescript-lang/rescript/pull/7280
+
 # 12.0.0-alpha.8
 
 #### :bug: Bug fix

compiler/syntax/src/res_scanner.ml

@@ -257,13 +257,13 @@ let scan_number scanner =
         8)
     | _ -> 10
   in
-  ignore (scan_digits scanner ~base);
+  let _ : bool = scan_digits scanner ~base in
 
   (*  *)
   let is_float =
     if '.' == scanner.ch then (
       next scanner;
-      ignore (scan_digits scanner ~base);
+      let _ : bool = scan_digits scanner ~base in
       true)
     else false
   in