expression to is FW specific

Author: SimonCropp

docs/serializer-settings.md

@@ -262,7 +262,7 @@ settings.ModifySerialization(
 settings.AddExtraSettings(
     _ => { _.DateFormatHandling = DateFormatHandling.MicrosoftDateFormat; });
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L758-L772' title='File snippet `scopedserializer` was extracted from'>snippet source</a> | <a href='#snippet-scopedserializer' title='Navigate to start of snippet `scopedserializer`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L760-L774' title='File snippet `scopedserializer` was extracted from'>snippet source</a> | <a href='#snippet-scopedserializer' title='Navigate to start of snippet `scopedserializer`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:
@@ -303,7 +303,7 @@ var target = new IgnoreTypeTarget
 };
 await Verify(target, settings);
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L501-L519' title='File snippet `addignoretype` was extracted from'>snippet source</a> | <a href='#snippet-addignoretype' title='Navigate to start of snippet `addignoretype`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L503-L521' title='File snippet `addignoretype` was extracted from'>snippet source</a> | <a href='#snippet-addignoretype' title='Navigate to start of snippet `addignoretype`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:
@@ -345,7 +345,7 @@ var target = new IgnoreInstanceTarget
 };
 await Verify(target, settings);
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L465-L484' title='File snippet `addignoreinstance` was extracted from'>snippet source</a> | <a href='#snippet-addignoreinstance' title='Navigate to start of snippet `addignoreinstance`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L467-L486' title='File snippet `addignoreinstance` was extracted from'>snippet source</a> | <a href='#snippet-addignoreinstance' title='Navigate to start of snippet `addignoreinstance`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:
@@ -387,7 +387,7 @@ public Task WithObsoleteProp()
     return Verify(target);
 }
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L710-L729' title='File snippet `withobsoleteprop` was extracted from'>snippet source</a> | <a href='#snippet-withobsoleteprop' title='Navigate to start of snippet `withobsoleteprop`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L712-L731' title='File snippet `withobsoleteprop` was extracted from'>snippet source</a> | <a href='#snippet-withobsoleteprop' title='Navigate to start of snippet `withobsoleteprop`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:
@@ -423,7 +423,7 @@ public Task WithObsoletePropIncluded()
     return Verify(target, settings);
 }
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L694-L709' title='File snippet `withobsoletepropincluded` was extracted from'>snippet source</a> | <a href='#snippet-withobsoletepropincluded' title='Navigate to start of snippet `withobsoletepropincluded`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L696-L711' title='File snippet `withobsoletepropincluded` was extracted from'>snippet source</a> | <a href='#snippet-withobsoletepropincluded' title='Navigate to start of snippet `withobsoletepropincluded`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:
@@ -464,7 +464,7 @@ var target = new IgnoreExplicitTarget
 };
 await Verify(target, settings);
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L541-L560' title='File snippet `ignorememberbyexpression` was extracted from'>snippet source</a> | <a href='#snippet-ignorememberbyexpression' title='Navigate to start of snippet `ignorememberbyexpression`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L543-L562' title='File snippet `ignorememberbyexpression` was extracted from'>snippet source</a> | <a href='#snippet-ignorememberbyexpression' title='Navigate to start of snippet `ignorememberbyexpression`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:
@@ -507,7 +507,7 @@ var target = new IgnoreExplicitTarget
 };
 await Verify(target, settings);
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L566-L588' title='File snippet `ignorememberbyname` was extracted from'>snippet source</a> | <a href='#snippet-ignorememberbyname' title='Navigate to start of snippet `ignorememberbyname`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L568-L590' title='File snippet `ignorememberbyname` was extracted from'>snippet source</a> | <a href='#snippet-ignorememberbyname' title='Navigate to start of snippet `ignorememberbyname`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:
@@ -542,7 +542,7 @@ settings.ModifySerialization(_ => _.IgnoreMembersThatThrow<CustomException>());
 var target = new WithCustomException();
 await Verify(target, settings);
 ```
-<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L604-L612' title='File snippet `ignoremembersthatthrow` was extracted from'>snippet source</a> | <a href='#snippet-ignoremembersthatthrow' title='Navigate to start of snippet `ignoremembersthatthrow`'>anchor</a></sup>
+<sup><a href='/src/Verify.Tests/Serialization/SerializationTests.cs#L606-L614' title='File snippet `ignoremembersthatthrow` was extracted from'>snippet source</a> | <a href='#snippet-ignoremembersthatthrow' title='Navigate to start of snippet `ignoremembersthatthrow`'>anchor</a></sup>
 <!-- endsnippet -->
 
 Result:

src/Verify.Tests/Serialization/SerializationTests.ExpressionString.verified.txt src/Verify.Tests/Serialization/SerializationTests.ExpressionString.Core.verified.txt

@@ -0,0 +1 @@
+'source => Convert(source.Message)'

src/Verify.Tests/Serialization/SerializationTests.ExpressionString.Net.verified.txt

@@ -434,11 +434,13 @@ public async Task ExceptionMessageProp()
     [Fact]
     public async Task ExpressionString()
     {
-        var parameter = Expression.Parameter(typeof(Exception),"source");
+        var parameter = Expression.Parameter(typeof(Exception), "source");
         var property = Expression.Property(parameter, "Message");
         var convert = Expression.Convert(property, typeof(object));
         var expression = Expression.Lambda<Func<Exception, object>>(convert, parameter);
-        await Verify(expression);
+        var settings = new VerifySettings();
+        settings.UniqueForRuntime();
+        await Verify(expression, settings);
     }
 
     class WithExceptionIgnoreMessage