Fix CI failures: remove 'in' keyword in RemoveUnnecessaryParenthesesTests.fs triggering FS3885, fix PR number in release notes, add .Language/preview.md entry

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: T-Gro

docs/release-notes/.FSharp.Compiler.Service/11.0.100.md

@@ -22,4 +22,4 @@
 
 * Added warning FS3884 when a function or delegate value is used as an interpolated string argument. ([PR #19289](https://github.com/dotnet/fsharp/pull/19289))
 * Add `#version;;` directive to F# Interactive to display version and environment information. ([Issue #13307](https://github.com/dotnet/fsharp/issues/13307), [PR #19332](https://github.com/dotnet/fsharp/pull/19332))
-* Added warning FS3885 when `let ... in` with explicit `in` keyword has a body that extends to subsequent lines, which causes all subsequent lines to become part of the `let` body due to the parser's greedy behavior. ([Issue #7091](https://github.com/dotnet/fsharp/issues/7091), [PR #19526](https://github.com/dotnet/fsharp/pull/19526))
+* Added warning FS3885 when `let ... in` with explicit `in` keyword has a body that extends to subsequent lines, which causes all subsequent lines to become part of the `let` body due to the parser's greedy behavior. ([Issue #7091](https://github.com/dotnet/fsharp/issues/7091), [PR #19501](https://github.com/dotnet/fsharp/pull/19501))

docs/release-notes/.Language/preview.md

@@ -2,6 +2,7 @@
 
 * Warn (FS3884) when a function or delegate value is used as an interpolated string argument, since it will be formatted via `ToString` rather than being applied. ([PR #19289](https://github.com/dotnet/fsharp/pull/19289))
 * Added `MethodOverloadsCache` language feature (preview) that caches overload resolution results for repeated method calls, significantly improving compilation performance. ([PR #19072](https://github.com/dotnet/fsharp/pull/19072))
+* Warn (FS3885) when `let ... in` with explicit `in` keyword has a body that extends to subsequent lines, causing unexpected scoping. ([Issue #7091](https://github.com/dotnet/fsharp/issues/7091), [PR #19501](https://github.com/dotnet/fsharp/pull/19501))
 
 ### Fixed
 

vsintegration/tests/FSharp.Editor.Tests/CodeFixes/RemoveUnnecessaryParenthesesTests.fs

@@ -2724,10 +2724,10 @@ module Patterns =
             let sb = StringBuilder()
 
             for original, expected in pairs ->
-                (let original = string (SynPat.fmt sb original) in
+                (let original = string (SynPat.fmt sb original)
                  ignore <| sb.Clear()
                  original),
-                (let expected = string (SynPat.fmt sb expected) in
+                (let expected = string (SynPat.fmt sb expected)
                  ignore <| sb.Clear()
                  expected)
         }