Version Used:
4.11.0-2.24268.2+b9c35f1021d2d9d40521474c388d49ee7580ec98

Steps to Reproduce:

1. Call an API that has both params [] and params span overloads from an expression.

Minimal repro: exprSpan.zip

(sharplab doesn't yet have params span feature)

This could be seen as a source-breaking change for folks if they hit in conjunction with seeing new params span overloads for framework APIs. That's what happened here dotnet/efcore@dae7d42

Diagnostic Id:
CS8640, CS9226

Expected Behavior:
No error

Actual Behavior:

C:\scratch\exprSpan\Program.cs(8,51): error CS8640: Expression tree cannot contain value of ref struct or restricted type 'ReadOnlySpan'.
C:\scratch\exprSpan\Program.cs(8,51): error CS9226: An expression tree may not contain an expanded form of non-array params collection parameter.