[K/JS] Capture stackTrace before the init function call ^Fixed KT-55315

js/js.translator/testData/box/expression/misc/stackTraceAccessInsideInitBlock.kt

@@ -0,0 +1,32 @@
+// EXPECTED_REACHABLE_NODES: 1462
+// KJS_WITH_FULL_RUNTIME
+// IGNORE_BACKEND: JS
+// KT-55315
+
+var stackTrace: String = ""
+
+open class MyOwnException1: Throwable("Test message 1") {
+    init {
+        stackTrace = asDynamic().stack
+    }
+}
+
+class MyOwnException2: MyOwnException1() {
+    init {
+        stackTrace = asDynamic().stack
+    }
+}
+
+fun box(): String {
+    try {
+        throw MyOwnException1()
+    } catch (e: Throwable) {
+       if (!stackTrace.contains("MyOwnException1: Test message 1\n")) return "fail"
+    }
+    try {
+        throw MyOwnException2()
+    } catch (e: Throwable) {
+        if (!stackTrace.contains("MyOwnException2: Test message 1\n")) return "fail"
+    }
+    return "OK"
+}