KCL: Fix cryptic error when using duplicate edges in fillet call (#5755)

Fixes https://github.com/KittyCAD/modeling-app/issues/4307

Now if you try to fillet the same edge twice in a single fillet command,
the error message is clearer, and the source range will highlight
the specific edges in the array which are duplicated.

Same goes for chamfer.

Note: although the Rust KCL interpreter sends back an array of SourceRange
for each KCL error, the frontend only puts the first one into CodeMirror
diagnostics. We should fix that: https://github.com/KittyCAD/modeling-app/issues/5754

rust/kcl-lib/e2e/executor/inputs/fillet_duplicate_tags.kcl

@@ -1,8 +1,15 @@
-const part001 = startSketchOn('XY')
-    |> startProfileAt([0,0], %)
-    |> line(end = [0, 10], tag = $thing)
-    |> line(end = [10, 0])
-    |> line(end = [0, -10], tag = $thing2)
-    |> close()
-    |> extrude(length = 10)
-    |> fillet(radius = 0.5, tags = [thing, thing])
+startProfileAt([0, 0], startSketchOn("XY"))
+  |> xLine(length = 10, tag = $line000)
+  |> yLine(length = 10, tag = $line001)
+  |> xLine(endAbsolute = profileStartX(%), tag = $line002)
+  |> close(tag = $line003)
+  |> extrude(length = 10)
+  |> fillet(
+       radius = 1,
+       tags = [
+         line003,
+         getNextAdjacentEdge(line000),
+         getPreviousAdjacentEdge(line001)
+       ],
+     )
+

rust/kcl-lib/e2e/executor/main.rs

@@ -27,11 +27,14 @@ async fn kcl_test_fillet_duplicate_tags() {
     let code = kcl_input!("fillet_duplicate_tags");
 
     let result = execute_and_snapshot(code, UnitLength::Mm, None).await;
-    assert!(result.is_err());
+    let err = result.expect_err("Code should have failed due to the duplicate edges being filletted");
+
+    let err = err.as_kcl_error().unwrap();
     assert_eq!(
-        result.err().unwrap().to_string(),
-        r#"type: KclErrorDetails { source_ranges: [SourceRange([229, 272, 0])], message: "Duplicate tags are not allowed." }"#,
+        err.message(),
+        "The same edge ID is being referenced multiple times, which is not allowed. Please select a different edge"
     );
+    assert_eq!(err.source_ranges().len(), 2);
 }
 
 #[tokio::test(flavor = "multi_thread")]