[test] Run irText tests against K1 frontend for JS

compiler/testData/ir/irText/stubs/genericClassInDifferentModule.kt

@@ -1,3 +1,6 @@
+// IGNORE_BACKEND_K1: JS_IR
+// IGNORE_BACKEND_K1: JS_IR_ES6
+
 // MODULE: m1
 // FILE: genericClassInDifferentModule_m1.kt
 
@@ -20,4 +23,4 @@ class Derived1<T>(x: T) : Base<T>(x) {
     override var <Z> Z.exn: T
         get() = x
         set(value) {}
-}
+}