[ty_test] Move HoverOutput to hover module

Move the HoverOutput type from check_output.rs to hover.rs where it
logically belongs. The check_output module should only contain the
CheckOutput enum and sorting infrastructure, while hover-specific
types belong in the hover module.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

crates/ty_test/src/check_output.rs

@@ -5,17 +5,9 @@
 
 use ruff_db::diagnostic::Diagnostic;
 use ruff_source_file::{LineIndex, OneIndexed};
-use ruff_text_size::TextSize;
 use std::ops::Range;
 
-/// A hover result for testing hover assertions.
-#[derive(Debug, Clone)]
-pub(crate) struct HoverOutput {
-    /// The position where hover was requested
-    pub(crate) offset: TextSize,
-    /// The inferred type at that position
-    pub(crate) inferred_type: String,
-}
+use crate::hover::HoverOutput;
 
 /// Represents either a diagnostic or a hover result for matching against assertions.
 #[derive(Debug, Clone)]

crates/ty_test/src/hover.rs

@@ -3,7 +3,6 @@
 //! This module provides functionality to extract hover assertions from comments,
 //! infer types at specified positions, and generate hover check outputs for matching.
 
-use crate::check_output::{CheckOutput, HoverOutput};
 use ruff_db::files::File;
 use ruff_db::parsed::parsed_module;
 use ruff_db::source::{line_index, source_text};
@@ -12,8 +11,18 @@ use ruff_python_ast::AnyNodeRef;
 use ruff_text_size::{Ranged, TextSize};
 use ty_python_semantic::{HasType, SemanticModel};
 
+use crate::check_output::CheckOutput;
 use crate::db::Db;
 
+/// A hover result for testing hover assertions.
+#[derive(Debug, Clone)]
+pub(crate) struct HoverOutput {
+    /// The position where hover was requested
+    pub(crate) offset: TextSize,
+    /// The inferred type at that position
+    pub(crate) inferred_type: String,
+}
+
 /// Find the AST node with minimal range that fully contains the given offset.
 fn find_covering_node<'a>(root: AnyNodeRef<'a>, offset: TextSize) -> Option<AnyNodeRef<'a>> {
     struct Visitor<'a> {

crates/ty_test/src/matcher.rs

@@ -12,7 +12,8 @@ use ruff_db::source::{SourceText, line_index, source_text};
 use ruff_source_file::{LineIndex, OneIndexed};
 
 use crate::assertion::{InlineFileAssertions, ParsedAssertion, UnparsedAssertion};
-use crate::check_output::{CheckOutput, HoverOutput, LineCheckOutputs, SortedCheckOutputs};
+use crate::check_output::{CheckOutput, LineCheckOutputs, SortedCheckOutputs};
+use crate::hover::HoverOutput;
 use crate::db::Db;
 
 #[derive(Debug, Default)]