[K2, MPP] Fix reporting of MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED

compiler/testData/diagnostics/tests/multiplatform/manyInterfacesMemberNotImplemented.fir.kt

@@ -0,0 +1,25 @@
+// TARGET_BACKEND: JVM
+// !LANGUAGE: +MultiPlatformProjects
+
+// MODULE: common
+// TARGET_PLATFORM: Common
+// FILE: common.kt
+
+expect interface S1
+expect interface S2
+
+<!MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED{JVM}!>open class A : S1, S2<!>
+
+class B : A()
+
+// MODULE: jvm()()(common)
+// TARGET_PLATFORM: JVM
+// FILE: main.kt
+
+actual interface S1 {
+    fun f() {}
+}
+
+actual interface S2 {
+    fun f() {}
+}

compiler/testData/diagnostics/tests/multiplatform/manyInterfacesMemberNotImplemented.kt

@@ -0,0 +1,25 @@
+// TARGET_BACKEND: JVM
+// !LANGUAGE: +MultiPlatformProjects
+
+// MODULE: common
+// TARGET_PLATFORM: Common
+// FILE: common.kt
+
+expect interface S1
+expect interface S2
+
+open <!MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED{JVM}!>class A<!> : S1, S2
+
+class B : A()
+
+// MODULE: jvm()()(common)
+// TARGET_PLATFORM: JVM
+// FILE: main.kt
+
+actual interface S1 {
+    fun f() {}
+}
+
+actual interface S2 {
+    fun f() {}
+}