fix: discovering last test in identical-named suites only

Author: ILikeRubberDuckies

src/controller.ts

@@ -180,6 +180,20 @@ export class Controller {
       return;
     }
 
+    //merge suites of same type and name
+    const branchMap = new Map<string, number>();
+    for (let i = 0; tree.length > 1 && i < tree.length; i++) {
+      const { fn, name, children } = tree[i];
+      if (!branchMap.has(fn + name)) {
+        branchMap.set(fn + name, i);
+      }
+      else {
+        tree[branchMap.get(fn + name)!].children.push(...children);
+        tree.splice(i, 1);
+        i--;
+      }
+    }
+
     const smMaintainer = previous?.sourceMap ?? this.smStore.maintain(uri);
     const sourceMap = await smMaintainer.refresh(contents);
     const add = (