fix: fast path for compareIdentifiers when num

Author: H4ad

internal/identifiers.js

@@ -2,6 +2,10 @@
 
 const numeric = /^[0-9]+$/
 const compareIdentifiers = (a, b) => {
+  if (typeof a === 'number' && typeof b === 'number') {
+    return a === b ? 0 : a < b ? -1 : 1
+  }
+  
   const anum = numeric.test(a)
   const bnum = numeric.test(b)