[Bug]: xUnit code fixer drops `Assert.Collection` assertions

[ascott18]

Description

An xunit assertion with item inspectors like this...

        Assert.Collection(orderings,
            ordering =>
            {
                var prop = Assert.Single(ordering.Properties);
                Assert.Equal("Parent", prop.Name);
            }
        );

... has the item inspectors dropped entirely, leaving only await Assert.That(orderings).HasCount(1);

This leads to tests that still pass, but in a large test refactor, its easy to miss that the other assertions were lost.

Expected Behavior

Item assertions are preserved in some form, or the Assert.Collection is left as-is for the user to convert to TUnit manually.

Actual Behavior

Assertions are dropped in a way that still leaves passing tests in place, but missing additional critical test logic.

Steps to Reproduce

Run xUnit code fixer on an assertion like this:

        Assert.Collection(orderings,
            ordering =>
            {
                var prop = Assert.Single(ordering.Properties);
                Assert.Equal("Parent", prop.Name);
            }
        );

TUnit Version

1.14.0

.NET Version

NET 10

Operating System

Windows

IDE / Test Runner

dotnet CLI (dotnet test / dotnet run)

Error Output / Stack Trace

Additional Context

No response

IDE-Specific Issue?

• I've confirmed this issue occurs when running via dotnet test or dotnet run, not just in my IDE