Fix IteratorNext intrinsic to cast its dispatch receiver to

the expected type.

^KT-47741 Fixed.

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

@@ -3465,6 +3465,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @Test
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @Test
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/IteratorNext.kt

@@ -33,8 +33,8 @@ object IteratorNext : IntrinsicMethod() {
         // If the array element type is unboxed primitive, do not unbox. Otherwise AsmUtil.unbox throws exception
         val type = if (AsmUtil.isBoxedPrimitiveType(signature.returnType)) AsmUtil.unboxType(signature.returnType) else signature.returnType
         val newSignature = signature.newReturnType(type)
-        return IrIntrinsicFunction.create(expression, newSignature, context, AsmTypes.OBJECT_TYPE) {
+        val primitiveClassName = getKotlinPrimitiveClassName(type)
-            val primitiveClassName = getKotlinPrimitiveClassName(type)
+        return IrIntrinsicFunction.create(expression, newSignature, context, getPrimitiveIteratorType(primitiveClassName)) {
             it.invokevirtual(
                 getPrimitiveIteratorType(primitiveClassName).internalName,
                 "next${primitiveClassName.asString()}",

compiler/testData/codegen/box/callableReference/function/kt47741.kt

@@ -0,0 +1,6 @@
+// IGNORE_BACKEND: WASM
+
+fun box(): String {
+   val generateId = (1 .. Int.MAX_VALUE).iterator()::next
+   return if (generateId() == 1) "OK" else "FAIL"
+}

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

@@ -3465,6 +3465,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @Test
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @Test
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {

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

@@ -3465,6 +3465,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @Test
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @Test
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {

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

@@ -3027,6 +3027,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {
                 runTest("compiler/testData/codegen/box/callableReference/function/nestedConstructorFromClass.kt");

js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java

@@ -2192,6 +2192,11 @@ public class IrJsCodegenBoxES6TestGenerated extends AbstractIrJsCodegenBoxES6Tes
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {
                 runTest("compiler/testData/codegen/box/callableReference/function/nestedConstructorFromClass.kt");

js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java

@@ -2192,6 +2192,11 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {
                 runTest("compiler/testData/codegen/box/callableReference/function/nestedConstructorFromClass.kt");

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

@@ -2192,6 +2192,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {
                 runTest("compiler/testData/codegen/box/callableReference/function/nestedConstructorFromClass.kt");

js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/wasm/semantics/IrCodegenBoxWasmTestGenerated.java

@@ -1622,6 +1622,11 @@ public class IrCodegenBoxWasmTestGenerated extends AbstractIrCodegenBoxWasmTest
                 runTest("compiler/testData/codegen/box/callableReference/function/kt32462.kt");
             }
 
+            @TestMetadata("kt47741.kt")
+            public void testKt47741() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/function/kt47741.kt");
+            }
+
             @TestMetadata("nestedConstructorFromClass.kt")
             public void testNestedConstructorFromClass() throws Exception {
                 runTest("compiler/testData/codegen/box/callableReference/function/nestedConstructorFromClass.kt");