URL: encode ^ in non-opaque paths

For whatwg/url#846.

Author: annevk

url/resources/setters_tests.json

@@ -1921,8 +1921,8 @@
             "href": "a:/",
             "new_value": "\u0000\u0001\t\n\r\u001f !\"#$%&'()*+,-./09:;<=>?@AZ[\\]^_`az{|}~\u007f\u0080\u0081Éé",
             "expected": {
-                "href": "a:/%00%01%1F%20!%22%23$%&'()*+,-./09:;%3C=%3E%3F@AZ[\\]^_%60az%7B|%7D~%7F%C2%80%C2%81%C3%89%C3%A9",
-                "pathname": "/%00%01%1F%20!%22%23$%&'()*+,-./09:;%3C=%3E%3F@AZ[\\]^_%60az%7B|%7D~%7F%C2%80%C2%81%C3%89%C3%A9"
+                "href": "a:/%00%01%1F%20!%22%23$%&'()*+,-./09:;%3C=%3E%3F@AZ[\\]%5E_%60az%7B|%7D~%7F%C2%80%C2%81%C3%89%C3%A9",
+                "pathname": "/%00%01%1F%20!%22%23$%&'()*+,-./09:;%3C=%3E%3F@AZ[\\]%5E_%60az%7B|%7D~%7F%C2%80%C2%81%C3%89%C3%A9"
             }
         },
         {

url/resources/urltestdata.json

@@ -8507,6 +8507,21 @@
     "search": "",
     "username": ""
   },
+  {
+    "input": "non-special:cannot-be-a-base-url-!\"$%&'()*+,-.;<=>@[\\]^_`{|}~@/",
+    "base": null,
+    "hash": "",
+    "host": "",
+    "hostname": "",
+    "href": "non-special:cannot-be-a-base-url-!\"$%&'()*+,-.;<=>@[\\]^_`{|}~@/",
+    "origin": "null",
+    "password": "",
+    "pathname": "cannot-be-a-base-url-!\"$%&'()*+,-.;<=>@[\\]^_`{|}~@/",
+    "port": "",
+    "protocol": "non-special:",
+    "search": "",
+    "username": ""
+  },
   {
     "input": "https://www.example.com/path{\u007Fpath.html?query'\u007F=query#fragment<\u007Ffragment",
     "base": null,
@@ -8634,10 +8649,10 @@
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "foo://host/%20!%22$%&'()*+,-./:;%3C=%3E@[\\]^_%60%7B|%7D~",
+    "href": "foo://host/%20!%22$%&'()*+,-./:;%3C=%3E@[\\]%5E_%60%7B|%7D~",
     "origin": "null",
     "password": "",
-    "pathname": "/%20!%22$%&'()*+,-./:;%3C=%3E@[\\]^_%60%7B|%7D~",
+    "pathname": "/%20!%22$%&'()*+,-./:;%3C=%3E@[\\]%5E_%60%7B|%7D~",
     "port":"",
     "protocol": "foo:",
     "search": "",
@@ -8649,10 +8664,10 @@
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "wss://host/%20!%22$%&'()*+,-./:;%3C=%3E@[/]^_%60%7B|%7D~",
+    "href": "wss://host/%20!%22$%&'()*+,-./:;%3C=%3E@[/]%5E_%60%7B|%7D~",
     "origin": "wss://host",
     "password": "",
-    "pathname": "/%20!%22$%&'()*+,-./:;%3C=%3E@[/]^_%60%7B|%7D~",
+    "pathname": "/%20!%22$%&'()*+,-./:;%3C=%3E@[/]%5E_%60%7B|%7D~",
     "port":"",
     "protocol": "wss:",
     "search": "",