js-on-sx: js-is-space? covers full ES WhiteSpace + LineTerminator set

lib/js/runtime.sx

@@ -1553,7 +1553,26 @@
 
 (define
   js-is-space?
-  (fn (c) (or (= c " ") (= c "\t") (= c "\n") (= c "\r"))))
+  (fn
+    (c)
+    (let
+      ((cc (char-code c)))
+      (or
+        (= cc 9)
+        (= cc 10)
+        (= cc 11)
+        (= cc 12)
+        (= cc 13)
+        (= cc 32)
+        (= cc 160)
+        (= cc 5760)
+        (and (>= cc 8192) (<= cc 8202))
+        (= cc 8232)
+        (= cc 8233)
+        (= cc 8239)
+        (= cc 8287)
+        (= cc 12288)
+        (= cc 65279)))))
 
 (define
   js-parse-decimal