Trivia between xml doc and type not restored

[nojaf]

Issue created from fantomas-online

Code

/// Represents a line number when using zero-based line counting (used by Visual Studio)
// #if CHECK_LINE0_TYPES

// #else
type Line0 = int
// #endif

Result

/// Represents a line number when using zero-based line counting (used by Visual Studio)
type Line0 = int
// #endif

Problem description

Discovered by:

/// Represents a line number when using zero-based line counting (used by Visual Studio)
#if CHECK_LINE0_TYPES
// Visual Studio uses line counts starting at 0, F# uses them starting at 1 
[<Measure>] type ZeroBasedLineAnnotation

type Line0 = int<ZeroBasedLineAnnotation>
#else
type Line0 = int
#endif

Extra information

• The formatted result breaks by code.
• The formatted result gives compiler warnings.
• I or my company would be willing to help fix this.

Options

Fantomas master branch at 2022-03-10T17:18:56Z - c455e63

Default Fantomas configuration

Signature file

_{Did you know that you can ignore files when formatting from fantomas-tool or the FAKE targets by using a .fantomasignore file?}

[nojaf]

To solve this, I need to type keyword as part of the trivia for SynTypeDefnSig.
Similar to https://fsharp.github.io/fsharp-compiler-docs/reference/fsharp-compiler-syntaxtrivia-syntypedefntrivia.html