Fix inline class type coercion in == with generic call

#KT-27393 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -3254,7 +3254,16 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
     }
 
     private StackValue genLazyUnlessProvided(@Nullable StackValue pregenerated, @NotNull KtExpression expr, @NotNull Type type) {
-        return pregenerated != null ? StackValue.coercion(pregenerated, type, null) : genLazy(expr, type);
+        return genLazyUnlessProvided(pregenerated, expr, type, null);
+    }
+
+    private StackValue genLazyUnlessProvided(
+            @Nullable StackValue pregenerated,
+            @NotNull KtExpression expr,
+            @NotNull Type type,
+            @Nullable KotlinType kotlinType
+    ) {
+        return pregenerated != null ? StackValue.coercion(pregenerated, type, kotlinType) : genLazy(expr, type, kotlinType);
     }
 
     private StackValue genUnlessProvided(@Nullable StackValue pregenerated, @NotNull KtExpression expr, @NotNull Type type) {
@@ -3399,8 +3408,8 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
         KotlinType leftKotlinType = kotlinType(left);
         KotlinType rightKotlinType = kotlinType(right);
 
-        StackValue leftValue = genLazyUnlessProvided(pregeneratedSubject, left, leftType);
-        StackValue rightValue = genLazy(right, rightType);
+        StackValue leftValue = genLazyUnlessProvided(pregeneratedSubject, left, leftType, leftKotlinType);
+        StackValue rightValue = genLazy(right, rightType, rightKotlinType);
 
         return StackValue.operation(Type.BOOLEAN_TYPE, v -> {
             KotlinType nullableAnyType = state.getModule().getBuiltIns().getNullableAnyType();

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

@@ -0,0 +1,30 @@
+inline class IcAny(val x: Any?)
+inline class IcInt(val x: Int)
+inline class IcLong(val x: Long)
+
+fun <T> id(x: T) = x
+
+fun box(): String {
+    if (IcInt(42) == id(IcInt(24))) return "Error 1"
+    if (IcInt(42) != id(IcInt(42))) return "Error 2"
+    if (id(IcInt(42)) == IcInt(24)) return "Error 3"
+    if (id(IcInt(42)) != IcInt(42)) return "Error 4"
+    if (id(IcInt(42)) == id(IcInt(24))) return "Error 5"
+    if (id(IcInt(42)) != id(IcInt(42))) return "Error 6"
+
+    if (IcLong(42) == id(IcLong(24))) return "Error 2, 1"
+    if (IcLong(42) != id(IcLong(42))) return "Error 2, 2"
+    if (id(IcLong(42)) == IcLong(24)) return "Error 2, 3"
+    if (id(IcLong(42)) != IcLong(42)) return "Error 2, 4"
+    if (id(IcLong(42)) == id(IcLong(24))) return "Error 2, 5"
+    if (id(IcLong(42)) != id(IcLong(42))) return "Error 2, 6"
+
+    if (IcAny(42) == id(IcAny(24))) return "Error 3, 1"
+    if (IcAny(42) != id(IcAny(42))) return "Error 3, 2"
+    if (id(IcAny(42)) == IcAny(24)) return "Error 3, 3"
+    if (id(IcAny(42)) != IcAny(42)) return "Error 3, 4"
+    if (id(IcAny(42)) == id(IcAny(24))) return "Error 3, 5"
+    if (id(IcAny(42)) != id(IcAny(42))) return "Error 3, 6"
+
+    return "OK"
+}

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -11674,6 +11674,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsOperatorWithGenericCall.kt")
+        public void testEqualsOperatorWithGenericCall() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
+        }
+
         @TestMetadata("extLambdaInInlineClassFun.kt")
         public void testExtLambdaInInlineClassFun() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/extLambdaInInlineClassFun.kt");

compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -11674,6 +11674,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsOperatorWithGenericCall.kt")
+        public void testEqualsOperatorWithGenericCall() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
+        }
+
         @TestMetadata("extLambdaInInlineClassFun.kt")
         public void testExtLambdaInInlineClassFun() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/extLambdaInInlineClassFun.kt");

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -11679,6 +11679,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsOperatorWithGenericCall.kt")
+        public void testEqualsOperatorWithGenericCall() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
+        }
+
         @TestMetadata("extLambdaInInlineClassFun.kt")
         public void testExtLambdaInInlineClassFun() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/extLambdaInInlineClassFun.kt");

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/IrJsCodegenBoxTestGenerated.java

@@ -10214,6 +10214,11 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsOperatorWithGenericCall.kt")
+        public void testEqualsOperatorWithGenericCall() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
+        }
+
         @TestMetadata("extLambdaInInlineClassFun.kt")
         public void testExtLambdaInInlineClassFun() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/extLambdaInInlineClassFun.kt");

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java

@@ -11259,6 +11259,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClass.kt");
         }
 
+        @TestMetadata("equalsOperatorWithGenericCall.kt")
+        public void testEqualsOperatorWithGenericCall() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/equalsOperatorWithGenericCall.kt");
+        }
+
         @TestMetadata("extLambdaInInlineClassFun.kt")
         public void testExtLambdaInInlineClassFun() throws Exception {
             runTest("compiler/testData/codegen/box/inlineClasses/extLambdaInInlineClassFun.kt");