fix: StaticArray#concat link child to incorrect parent (#2746)

Author: HerrCai0907

std/assembly/staticarray.ts

@@ -214,14 +214,14 @@ export class StaticArray<T> {
         for (let offset: usize = 0; offset < sourceSize; offset += sizeof<T>()) {
           let ref = load<usize>(thisStart + offset);
           store<usize>(outStart + offset, ref);
-          __link(outStart, ref, true);
+          __link(changetype<usize>(out), ref, true);
         }
         outStart += sourceSize;
         let otherSize = <usize>otherLen << alignof<T>();
         for (let offset: usize = 0; offset < otherSize; offset += sizeof<T>()) {
           let ref = load<usize>(otherStart + offset);
           store<usize>(outStart + offset, ref);
-          __link(outStart, ref, true);
+          __link(changetype<usize>(out), ref, true);
         }
       } else {
         memory.copy(outStart, thisStart, sourceSize);

tests/compiler/std/staticarray.debug.wat

@@ -70,6 +70,11 @@ arr4 = changetype<StaticArray<Ref>>(0);
   result = source.concat<StaticArray<i32>>([]);
   assert(result.length == source.length);
 }
+{
+  let source: StaticArray<string> = ["1", "2"];
+  let result = source.concat<StaticArray<string>>(["3"]);
+  assert(result.length == 3);
+}
 
 // slice
 {