FIR: add bad test data changes related to not implemented checker

compiler/testData/diagnostics/tests/j+k/collectionOverrides/irrelevantImplCharSequence.fir.kt

@@ -0,0 +1,25 @@
+// FILE: AImpl.java
+
+abstract public class AImpl {
+    public char charAt(int index) {
+        return '1';
+    }
+
+    public final int length() { return 1; }
+}
+
+// FILE: A.java
+public class A extends AImpl implements CharSequence {
+    public CharSequence subSequence(int start, int end) {
+        return null;
+    }
+}
+
+// FILE: X.kt
+<!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>class X<!> : A()
+
+fun main() {
+    val x = X()
+    x[0]
+    x.length
+}

compiler/testData/diagnostics/tests/j+k/collectionOverrides/irrelevantImplCharSequence.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // FILE: AImpl.java
 
 abstract public class AImpl {

compiler/testData/diagnostics/tests/j+k/collectionOverrides/irrelevantImplCharSequenceKotlin.fir.kt

@@ -0,0 +1,28 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+// FILE: AImpl.kt
+
+abstract class AImpl {
+    fun charAt(index: Int): Char {
+        return '1'
+    }
+
+    fun length(): Int {
+        return 1
+    }
+}
+
+// FILE: A.java
+public class A extends AImpl implements CharSequence {
+    public CharSequence subSequence(int start, int end) {
+        return null;
+    }
+}
+
+// FILE: X.kt
+<!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>class X<!> : A()
+
+fun main() {
+    val x = X()
+    x[0]
+    x.length
+}

compiler/testData/diagnostics/tests/j+k/collectionOverrides/irrelevantImplCharSequenceKotlin.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 // FILE: AImpl.kt
 

compiler/testData/diagnostics/tests/j+k/collectionOverrides/irrelevantImplMutableList.fir.kt

@@ -108,7 +108,7 @@ public class A extends AImpl implements List<String> {
 }
 
 // FILE: X.kt
-<!ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED!>class X<!> : A()
+<!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>class X<!> : A()
 
 fun main() {
     val x = X()