allow Range to expand to array-like when converting to json (#8047)

# Description
Fixes #8002, which expands ranges `1..3` to expand to array-like when
saving and converting to json. Now,

```
> 1..3 | save foo.json
# foo.json
[
    1,
    2,
    3
]


> 1..3 | to json
[
    1,
    2,
    3
]
```
# User-Facing Changes

_(List of all changes that impact the user experience here. This helps
us keep track of breaking changes.)_

# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- [X] `cargo fmt --all -- --check` to check standard code formatting
(`cargo fmt --all` applies these changes)
- [X] `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- [X] `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

crates/nu-command/src/formats/to/json.rs

@@ -48,6 +48,8 @@ impl Command for ToJson {
         let use_tabs = call.has_flag("tabs");
 
         let span = call.head;
+        // allow ranges to expand and turn into array
+        let input = input.try_expand_range()?;
         let value = input.into_value(span);
         let json_value = value_to_json_value(&value)?;
 

crates/nu-command/src/formats/to/nuon.rs

@@ -34,6 +34,7 @@ impl Command for ToNuon {
         call: &Call,
         input: PipelineData,
     ) -> Result<PipelineData, ShellError> {
+        let input = input.try_expand_range()?;
         Ok(Value::String {
             val: to_nuon(call, input)?,
             span: call.head,

crates/nu-command/src/formats/to/text.rs

@@ -39,6 +39,7 @@ impl Command for ToText {
         } else {
             "\n"
         };
+        let input = input.try_expand_range()?;
 
         if let PipelineData::ListStream(stream, _) = input {
             Ok(PipelineData::ExternalStream {

crates/nu-command/src/formats/to/xml.rs

@@ -64,6 +64,7 @@ impl Command for ToXml {
         let head = call.head;
         let config = engine_state.get_config();
         let pretty: Option<Spanned<i64>> = call.get_flag(engine_state, stack, "pretty")?;
+        let input = input.try_expand_range()?;
         to_xml(input, head, pretty, config)
     }
 }

crates/nu-command/src/formats/to/yaml.rs

@@ -38,6 +38,7 @@ impl Command for ToYaml {
         input: PipelineData,
     ) -> Result<PipelineData, ShellError> {
         let head = call.head;
+        let input = input.try_expand_range()?;
         to_yaml(input, head)
     }
 }