[FIR] Fix UNRESOLVED_REFERENCE in callable reference to delegated var

#KT-57204 Fixed

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosisCompilerTestFE10TestdataTestGenerated.java

@@ -3859,6 +3859,12 @@ public class DiagnosisCompilerTestFE10TestdataTestGenerated extends AbstractDiag
                     runTest("compiler/testData/diagnostics/tests/callableReference/property/memberFromTopLevel.kt");
                 }
 
+                @Test
+                @TestMetadata("mutablePropertyViaDelegation.kt")
+                public void testMutablePropertyViaDelegation() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/callableReference/property/mutablePropertyViaDelegation.kt");
+                }
+
                 @Test
                 @TestMetadata("propertyFromAbstractSuperClass.kt")
                 public void testPropertyFromAbstractSuperClass() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java

@@ -3859,6 +3859,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
                     runTest("compiler/testData/diagnostics/tests/callableReference/property/memberFromTopLevel.kt");
                 }
 
+                @Test
+                @TestMetadata("mutablePropertyViaDelegation.kt")
+                public void testMutablePropertyViaDelegation() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/callableReference/property/mutablePropertyViaDelegation.kt");
+                }
+
                 @Test
                 @TestMetadata("propertyFromAbstractSuperClass.kt")
                 public void testPropertyFromAbstractSuperClass() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java

@@ -3865,6 +3865,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
                     runTest("compiler/testData/diagnostics/tests/callableReference/property/memberFromTopLevel.kt");
                 }
 
+                @Test
+                @TestMetadata("mutablePropertyViaDelegation.kt")
+                public void testMutablePropertyViaDelegation() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/callableReference/property/mutablePropertyViaDelegation.kt");
+                }
+
                 @Test
                 @TestMetadata("propertyFromAbstractSuperClass.kt")
                 public void testPropertyFromAbstractSuperClass() throws Exception {

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/CallableReferenceResolution.kt

@@ -443,7 +443,7 @@ private fun createKPropertyType(
 private fun FirVariable.canBeMutableReference(candidate: Candidate): Boolean {
     if (!isVar) return false
     if (this is FirField) return true
-    val original = this.unwrapFakeOverrides()
+    val original = this.unwrapFakeOverridesOrDelegated()
     return original.source?.kind == KtFakeSourceElementKind.PropertyFromParameter ||
             (original.setter is FirMemberDeclaration &&
                     candidate.callInfo.session.visibilityChecker.isVisible(original.setter!!, candidate))

compiler/testData/diagnostics/tests/callableReference/property/mutablePropertyViaDelegation.kt

@@ -0,0 +1,21 @@
+// FIR_IDENTICAL
+
+import kotlin.reflect.KMutableProperty0
+import kotlin.reflect.KProperty0
+
+interface MkMutableSharedSettingsHolder {
+    var cleanTarget: String?
+}
+
+data class MakefileSettingsFacade(
+    val projectSettings: MkMutableSharedSettingsHolder
+): MkMutableSharedSettingsHolder by projectSettings {
+    var cleanTarget2: String? = ""
+}
+
+fun <T> consume(arg: T) {}
+
+fun foo(arg: MakefileSettingsFacade) {
+    consume<KProperty0<String?>>(arg::cleanTarget)
+    consume<KMutableProperty0<String?>>(arg::cleanTarget)
+}

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

@@ -3865,6 +3865,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                     runTest("compiler/testData/diagnostics/tests/callableReference/property/memberFromTopLevel.kt");
                 }
 
+                @Test
+                @TestMetadata("mutablePropertyViaDelegation.kt")
+                public void testMutablePropertyViaDelegation() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/callableReference/property/mutablePropertyViaDelegation.kt");
+                }
+
                 @Test
                 @TestMetadata("propertyFromAbstractSuperClass.kt")
                 public void testPropertyFromAbstractSuperClass() throws Exception {