Fix deserialization failure message of combined types (#8558)

Closes #7690

Author: Don-Vito

doc/cascadia/profiles.schema.json

@@ -949,7 +949,7 @@
         },
         "fontWeight": {
           "default": "normal",
-          "description": "Sets the weight (lightness or heaviness of the strokes) for the given font. Possible values:\n -\"thin\"\n -\"extra-light\"\n -\"light\"\n -\"semi-light\"\n -\"normal\" (default)\n -\"medium\"\n -\"semi-bold\"\n -\"bold\"\n -\"extra-bold\"\n -\"black\"\n -\"extra-black\" or the corresponding numeric representation of OpenType font weight.",
+          "description": "Sets the weight (lightness or heaviness of the strokes) for the given font. Possible values:\n -\"thin\"\n -\"extra-light\"\n -\"light\"\n -\"semi-light\"\n -\"normal\" (default)\n -\"medium\"\n -\"semi-bold\"\n -\"bold\"\n -\"extra-bold\"\n -\"black\"\n -\"extra-black\"\n or the corresponding numeric representation of OpenType font weight.",
           "oneOf": [
             {
               "enum": [

src/cascadia/TerminalSettingsModel/CascadiaSettingsSerialization.cpp

@@ -73,13 +73,17 @@ static void _CatchRethrowSerializationExceptionWithLocationInfo(std::string_view
         try
         {
             jsonValueAsString = e.jsonValue.asString();
+            if (e.jsonValue.isString())
+            {
+                jsonValueAsString = fmt::format("\"{}\"", jsonValueAsString);
+            }
         }
         catch (...)
         {
             // discard: we're in the middle of error handling
         }
 
-        msg = fmt::format("  Have: \"{}\"\n  Expected: {}", jsonValueAsString, e.expectedType);
+        msg = fmt::format("  Have: {}\n  Expected: {}", jsonValueAsString, e.expectedType);
 
         auto [l, c] = _LineAndColumnFromPosition(settingsString, e.jsonValue.getOffsetStart());
         msg = fmt::format((e.key ? keyedHeader : basicHeader),

src/cascadia/TerminalSettingsModel/JsonUtils.h

@@ -506,7 +506,7 @@ namespace Microsoft::Terminal::Settings::Model::JsonUtils
             }
 
             DeserializationError e{ json };
-            e.expectedType = TypeDescription();
+            e.expectedType = static_cast<const TBase&>(*this).TypeDescription();
             throw e;
         }
 
@@ -572,7 +572,7 @@ namespace Microsoft::Terminal::Settings::Model::JsonUtils
                     {
                         // attempt to combine AllClear (explicitly) with anything else
                         DeserializationError e{ element };
-                        e.expectedType = BaseEnumMapper::TypeDescription();
+                        e.expectedType = static_cast<const TBase&>(*this).TypeDescription();
                         throw e;
                     }
                     value |= newFlag;

src/cascadia/TerminalSettingsModel/TerminalSettingsSerializationHelpers.h

@@ -154,7 +154,7 @@ struct ::Microsoft::Terminal::Settings::Model::JsonUtils::ConversionTrait<::winr
         pair_type{ "extra-black", static_cast<uint16_t>(950u) },
     };
 
-    // Override mapping parser to add boolean parsing
+    // Override mapping parser to add unsigned int parsing
     auto FromJson(const Json::Value& json)
     {
         unsigned int value{ 400 };
@@ -191,7 +191,10 @@ struct ::Microsoft::Terminal::Settings::Model::JsonUtils::ConversionTrait<::winr
         return BaseEnumMapper::CanConvert(json) || json.isUInt();
     }
 
-    using EnumMapper::TypeDescription;
+    std::string TypeDescription() const
+    {
+        return EnumMapper::TypeDescription() + " or number";
+    }
 };
 
 JSON_ENUM_MAPPER(::winrt::Windows::UI::Xaml::ElementTheme)