Convert to computed property may generate code without a type annotation

[ahoppen]

Eg. consider the following new test case:

func testConvertStoredToComputedPropertyWithoutTypeAnnotation() async throws {
  try await assertCodeActions(
    ##"""
    1️⃣var 2️⃣foo = "abc"3️⃣
    """##,
    markers: ["2️⃣"],
    ignoringCodeActions: ["Add documentation"]
  ) { uri, positions in
    [
      CodeAction(
        title: "Convert to computed property",
        kind: .refactorInline,
        edit: WorkspaceEdit(
          changes: [
            uri: [
              TextEdit(
                range: positions["1️⃣"]..<positions["3️⃣"],
                newText: """
                  var foo { "abc" }
                  """
              )
            ]
          ]
        )
      )
    ]
  }
}

Notice how the generated code is invalid var foo { "abc" } because it doesn’t have a type annotation. What we should do is:

• In ConvertStoredPropertyToComputed.Context allow specifying the type of the variable (which LSP can get via a cursor info request). The code action can then insert it. Should it not be possible to determine the type, we should insert an editor placeholder instead.

[Padmashree06]

I would like to work on this issue.

[ahoppen]

Great. Looking forward to your PR.