Rust: Update diagnostics for documentation comments

Regenerate line-count expectations now that documentation comments are extracted as grammar nodes.

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

Copilot-Session: 612c2b22-3121-4c83-9656-bb0f4abb2a8a

Author: paldepind

rust/ql/test/query-tests/diagnostics/LinesOfCode.expected

@@ -1 +1 @@
-| 60 |
+| 67 |

rust/ql/test/query-tests/diagnostics/LinesOfUserCode.expected

@@ -1 +1 @@
-| 60 |
+| 67 |

rust/ql/test/query-tests/diagnostics/LinesOfUserCodeInFiles.expected

@@ -1,7 +1,7 @@
-| my_struct.rs:0:0:0:0 | my_struct.rs | 20 |
-| comments.rs:0:0:0:0 | comments.rs | 13 |
-| main.rs:0:0:0:0 | main.rs | 8 |
-| my_macro.rs:0:0:0:0 | my_macro.rs | 8 |
+| my_struct.rs:0:0:0:0 | my_struct.rs | 21 |
+| comments.rs:0:0:0:0 | comments.rs | 17 |
+| main.rs:0:0:0:0 | main.rs | 9 |
+| my_macro.rs:0:0:0:0 | my_macro.rs | 9 |
 | lib.rs:0:0:0:0 | lib.rs | 5 |
 | does_not_compile.rs:0:0:0:0 | does_not_compile.rs | 3 |
 | error.rs:0:0:0:0 | error.rs | 3 |

rust/ql/test/query-tests/diagnostics/SummaryStatsReduced.expected

@@ -9,8 +9,8 @@
 | Inconsistencies - Path resolution | 0 |
 | Inconsistencies - SSA | 0 |
 | Inconsistencies - data flow | 0 |
-| Lines of code extracted | 60 |
-| Lines of user code extracted | 60 |
+| Lines of code extracted | 67 |
+| Lines of user code extracted | 67 |
 | Macro calls - resolved | 8 |
 | Macro calls - total | 9 |
 | Macro calls - unresolved | 1 |