Turn 3560 off by default, since it's hugely breaking (#16160)

* Turn 3560 off by default, since it's hugely breaking

Author: vzarytovskii

src/Compiler/Driver/CompilerDiagnostics.fs

@@ -387,6 +387,7 @@ type PhasedDiagnostic with
         | 3390 -> false // xmlDocBadlyFormed - off by default
         | 3395 -> false // tcImplicitConversionUsedForMethodArg - off by default
         | 3559 -> false // typrelNeverRefinedAwayFromTop - off by default
+        | 3560 -> false // tcCopyAndUpdateRecordChangesAllFields - off by default
         | 3579 -> false // alwaysUseTypedStringInterpolation - off by default
         | _ ->
             match x.Exception with

tests/FSharp.Compiler.ComponentTests/Diagnostics/Records.fs

@@ -17,6 +17,7 @@ let updateOk r = { r with F1 = 1 }
 let updateWarn r = { r with F1 = 1; F2 = "" }
     """
     |> withLangVersion80
+    |> withOptions ["--warnon:FS3560"]
     |> typecheck
     |> shouldFail
     |> withDiagnostics [
@@ -46,7 +47,6 @@ type R = { F1: int; F2: string }
 let updateWarn r = { r with F1 = 1; F2 = "" }
     """
     |> withLangVersion80
-    |> withOptions ["--nowarn:3560"]
     |> typecheck
     |> shouldSucceed
 
@@ -86,6 +86,7 @@ let t2 (x: RecTy) (a: AnotherNestedRecTy) = { x with D.C.c = { a with A = 3 } }
 let t3 (x: RecTy) (a: AnotherNestedRecTy) = { x with D.C.c = { a with A = 3; B = 4 } }
     """
     |> withLangVersion80
+    |> withOptions ["--warnon:FS3560"]
     |> typecheck
     |> shouldFail
     |> withDiagnostics [