Fix condition of generating equals-impl0 call

This methods should not be called when instances of different inline
classes are being compared

^KT-57242: Fixed

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenTestGenerated.java

@@ -22613,6 +22613,12 @@ public class FirLightTreeBlackBoxCodegenTestGenerated extends AbstractFirLightTr
             runTest("compiler/testData/codegen/box/inlineClasses/kt54656.kt");
         }
 
+        @Test
+        @TestMetadata("kt57242.kt")
+        public void testKt57242() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/kt57242.kt", TransformersFunctions.getReplaceOptionalJvmInlineAnnotationWithReal());
+        }
+
         @Test
         @TestMetadata("lateinitInlineClasses.kt")
         public void testLateinitInlineClasses() throws Exception {

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirPsiBlackBoxCodegenTestGenerated.java

@@ -22613,6 +22613,12 @@ public class FirPsiBlackBoxCodegenTestGenerated extends AbstractFirPsiBlackBoxCo
             runTest("compiler/testData/codegen/box/inlineClasses/kt54656.kt");
         }
 
+        @Test
+        @TestMetadata("kt57242.kt")
+        public void testKt57242() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/kt57242.kt", TransformersFunctions.getReplaceOptionalJvmInlineAnnotationWithReal());
+        }
+
         @Test
         @TestMetadata("lateinitInlineClasses.kt")
         public void testLateinitInlineClasses() throws Exception {

compiler/ir/backend.jvm/lower/src/org/jetbrains/kotlin/backend/jvm/lower/JvmInlineClassLowering.kt

@@ -283,11 +283,11 @@ internal class JvmInlineClassLowering(
             if (left.type.isUnsigned() && right.type.isUnsigned() && rightIsUnboxed)
                 return irEquals(left.coerceToUnboxed(), right.coerceToUnboxed())
 
-            val klass = left.type.classOrNull!!.owner
-            val equalsMethod = if (rightIsUnboxed) {
-                this@JvmInlineClassLowering.context.inlineClassReplacements.getSpecializedEqualsMethod(klass, context.irBuiltIns)
+            val leftOperandClass = left.type.classOrNull!!.owner
+            val equalsMethod = if (rightIsUnboxed && leftOperandClass == right.type.classOrNull!!.owner) {
+                this@JvmInlineClassLowering.context.inlineClassReplacements.getSpecializedEqualsMethod(leftOperandClass, context.irBuiltIns)
             } else {
-                val equals = klass.functions.single { it.name.asString() == "equals" && it.overriddenSymbols.isNotEmpty() }
+                val equals = leftOperandClass.functions.single { it.name.asString() == "equals" && it.overriddenSymbols.isNotEmpty() }
                 this@JvmInlineClassLowering.context.inlineClassReplacements.getReplacementFunction(equals)!!
             }
 

compiler/testData/codegen/box/inlineClasses/kt57242.kt

@@ -0,0 +1,24 @@
+// TARGET_BACKEND: JVM_IR
+// WITH_STDLIB
+// FULL_JDK
+// WORKS_WHEN_VALUE_CLASS
+// LANGUAGE: +ValueClasses
+
+import java.util.UUID
+import java.util.UUID.randomUUID
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class IdOne(val id: UUID)
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class IdTwo(val id: UUID)
+
+fun box(): String {
+    val sameUUID = randomUUID()
+    val one = IdOne(sameUUID)
+    val two = IdTwo(sameUUID)
+
+    if (one.equals(two)) return "Fail"
+
+    return "OK"
+}

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java

@@ -22613,6 +22613,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/inlineClasses/kt54656.kt");
         }
 
+        @Test
+        @TestMetadata("kt57242.kt")
+        public void testKt57242() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/kt57242.kt", TransformersFunctions.getReplaceOptionalJvmInlineAnnotationWithReal());
+        }
+
         @Test
         @TestMetadata("lateinitInlineClasses.kt")
         public void testLateinitInlineClasses() throws Exception {