KT-MR-7307 review fixes

compiler/testData/diagnostics/tests/inlineClasses/inefficientEqualsOverridingInInlineClass.kt

@@ -0,0 +1,28 @@
+// FIR_IDENTICAL
+// WITH_STDLIB
+// !DIAGNOSTICS: -DEBUG_INFO_SMARTCAST
+// LANGUAGE: +CustomEqualsInInlineClasses
+
+@JvmInline
+value class IC1(val x: Int) {
+    override fun <!INEFFICIENT_EQUALS_OVERRIDING_IN_INLINE_CLASS!>equals<!>(other: Any?): Boolean {
+        if (other !is IC1) {
+            return false
+        }
+        return x == other.x
+    }
+}
+
+@JvmInline
+value class IC2(val x: Int) {
+    override fun hashCode() = 0
+}
+
+@JvmInline
+value class IC3(val x: Int) {
+    override fun equals(other: Any?) = true
+
+    fun equals(other: IC3) = true
+
+    override fun hashCode() = 0
+}