Use the stored tuple type only to select the debug-layout node name.
Preserve tuple construction, patterns, types and shape reconstruction.
Cover all four renderers with typed/untyped literals, both constructors,
mixed nesting, generic lambdas, and literal/constructed arities 7/8/9.
Add the VNEXT 11.0.200 FSharp.Core printer-only release note.

All commands below used BUILDING_USING_DOTNET=true and
FSHARPCORE_USE_PACKAGE=false. MTP options are passed directly: the
selected SDK rejects the handoff's extra "--" separator.

RED/GREEN command (plus Detailed output and xUnit XML diagnostics):
dotnet test --project tests\FSharp.Core.UnitTests\FSharp.Core.UnitTests.fsproj -c Debug -f net11.0 --filter-method "*Issue 20800*"
Before product edits: 2 executed, reference passed, struct failed,
exit 2. Expected: NewStructTuple (Value (1), Value ("a"))
Actual: NewTuple (Value (1), Value ("a"))
After the printer-only change: unchanged pair 2/2 passed, exit 0.
Expanded matrix: 3/3 passed, exit 0.

Both RED and GREEN loaded version 11.0.0.0 from:
C:\agents\fsharp-worktrees\issue-2112\artifacts\bin\FSharp.Core.UnitTests\Debug\net11.0\FSharp.Core.dll
Each matched the corresponding just-built repository core output:
C:\agents\fsharp-worktrees\issue-2112\artifacts\bin\FSharp.Core\Debug\net10.0\FSharp.Core.dll
RED SHA256: C1CDC73CE62BAB4DF4478F94CBA53488D69758C896734C4B15D61998DCB28AEF
GREEN SHA256: 05129632B3E6821E6E857FDF2EA68A0AEDC3FD4B67EC783707EC7203DFEE3E5D
Temporary runtime provenance diagnostics were removed.

Validation (all exit 0):
.\build.cmd -c Release
  Initial and final composite builds: 0 errors.
dotnet test --project tests\FSharp.Core.UnitTests\FSharp.Core.UnitTests.fsproj -c Debug -f net11.0 --filter-class "FSharp.Core.UnitTests.Quotations.*" --minimum-expected-tests 1
  29/29 passed, including unchanged tuple active-pattern facts.
dotnet test --project tests\FSharp.Core.UnitTests\FSharp.Core.UnitTests.fsproj -c Debug -f net11.0
  Total 6358: 6353 passed, 5 skipped, 0 failed.
dotnet test --project tests\FSharp.Compiler.ComponentTests\FSharp.Compiler.ComponentTests.fsproj -c Release -f net11.0 --filter-class "Conformance.Expressions.ExpressionQuotations.*" --minimum-expected-tests 1
  123/123 passed, including rendering snapshots.
dotnet test --project tests\fsharp\FSharpSuite.Tests.fsproj -c Debug -f net472 -p:BUILDING_USING_DOTNET=false --filter-method "*quotes-*" --output Detailed --minimum-expected-tests 3
  3/3 passed: quotes-FSC-FSC_DEBUG, quotes-FSC-BASIC, quotes-FSI-BASIC.
  These cases are #if !NETCOREAPP; net11.0 cannot discover them.
  MTP method filtering needs the leading wildcard for qualified names.
  MSBuild property enables desktop targeting; environment retains the
  values above and repository core project references remain in use.

Both requested file-scoped Fantomas commands ran. The product branch
is formatted; tests/ is intentionally excluded by .fantomasignore.
No unrelated formatting. git diff --check passed.
Bounded read-only expert-reviewer review using GPT-5.4: no findings.
Copilot Coding Agent-only final CoreCLR sweep is not applicable to
this Copilot CLI execution.

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

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