Add more tests

See unicode-org/message-format-wg#904

Author: catamorphism

testdata/message2/normalization.json

@@ -7,7 +7,7 @@
   },
   "tests": [
     {
-      "description": "NFC: literals are not normalized",
+      "description": "NFC: text is not normalized",
       "src": "\u1E0A\u0323",
       "exp": "\u1E0A\u0323"
     },
@@ -35,13 +35,23 @@
     },
     {
       "description": "NFC: keys are normalized",
+      "src": ".local $x = {\u1E0C\u0307 :string} .match {$x} \u1E0A\u0323 {{Right}} * {{Wrong}}",
+      "exp": "Right"
+    },
+    {
+      "description": "NFC: keys are normalized (unquoted)",
       "src": ".local $x = {\u1E0A\u0323 :string} .match {$x} \u1E0A\u0323 {{Not normalized}} \u1E0C\u0307 {{Normalized}} * {{Wrong}}",
       "expErrors": [{"type": "duplicate-variant"}]
     },
     {
-      "description": "NFC: keys are normalized",
-      "src": ".local $x = {\u1E0A\u0323 :string} .match {$x} \u1E0C\u0307 {{Right}} * {{Wrong}}",
-      "exp": "Right"
+      "description": "NFC: keys are normalized (quoted)",
+      "src": ".local $x = {\u1E0A\u0323 :string} .match {$x} |\u1E0A\u0323| {{Not normalized}} |\u1E0C\u0307| {{Normalized}} * {{Wrong}}",
+      "expErrors": [{"type": "duplicate-variant"}]
+    },
+    {
+      "description": "NFC: keys are normalized (mixed)",
+      "src": ".local $x = {\u1E0A\u0323 :string} .match {$x} \u1E0A\u0323 {{Not normalized}} |\u1E0C\u0307| {{Normalized}} * {{Wrong}}",
+      "expErrors": [{"type": "duplicate-variant"}]
     }
 ]
 }