[FIR] Remove duplicated logic for isMethodOfAny utility

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/declaration/FirDataObjectContentChecker.kt

@@ -14,7 +14,7 @@ import org.jetbrains.kotlin.fir.analysis.checkers.hasModifier
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
 import org.jetbrains.kotlin.fir.declarations.FirClass
 import org.jetbrains.kotlin.fir.declarations.FirSimpleFunction
-import org.jetbrains.kotlin.fir.types.isNullableAny
+import org.jetbrains.kotlin.fir.declarations.utils.isMethodOfAny
 import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.util.OperatorNameConventions
 
@@ -27,11 +27,7 @@ object FirDataObjectContentChecker : FirSimpleFunctionChecker() {
         val containingClass = context.containingDeclarations.lastOrNull() as? FirClass ?: return
         if (containingClass.classKind != ClassKind.OBJECT || !containingClass.hasModifier(KtTokens.DATA_KEYWORD)) return
 
-        if (
+        if (declaration.symbol.isMethodOfAny && declaration.name != OperatorNameConventions.TO_STRING) {
-            (declaration.name == OperatorNameConventions.HASH_CODE && declaration.valueParameters.isEmpty()) ||
-            (declaration.name == OperatorNameConventions.EQUALS &&
-                    declaration.valueParameters.singleOrNull()?.returnTypeRef?.isNullableAny == true)
-        ) {
             reporter.reportOn(source, FirErrors.DATA_OBJECT_CUSTOM_EQUALS_OR_HASH_CODE, context)
         }
     }

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/CallAndReferenceGenerator.kt

@@ -10,6 +10,7 @@ import org.jetbrains.kotlin.builtins.StandardNames
 import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.kotlin.fir.backend.*
 import org.jetbrains.kotlin.fir.declarations.*
+import org.jetbrains.kotlin.fir.declarations.utils.isMethodOfAny
 import org.jetbrains.kotlin.fir.expressions.*
 import org.jetbrains.kotlin.fir.expressions.builder.buildAnnotationCall
 import org.jetbrains.kotlin.fir.expressions.impl.FirNoReceiverExpression
@@ -40,7 +41,6 @@ import org.jetbrains.kotlin.ir.types.*
 import org.jetbrains.kotlin.ir.util.dump
 import org.jetbrains.kotlin.ir.util.isFunctionTypeOrSubtype
 import org.jetbrains.kotlin.ir.util.isInterface
-import org.jetbrains.kotlin.ir.util.isMethodOfAny
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.calls.NewCommonSuperTypeCalculator.commonSuperType
 import org.jetbrains.kotlin.util.OperatorNameConventions
@@ -1128,7 +1128,7 @@ class CallAndReferenceGenerator(
                 if (resolvedFirSymbol?.dispatchReceiverType != null) {
                     val baseDispatchReceiver = qualifiedAccess.findIrDispatchReceiver(explicitReceiverExpression)
                     dispatchReceiver =
-                        if (!resolvedFirSymbol.isMethodOfAny() || baseDispatchReceiver?.type?.classOrNull?.owner?.isInterface != true) {
+                        if (!resolvedFirSymbol.isFunctionFromAny() || baseDispatchReceiver?.type?.classOrNull?.owner?.isInterface != true) {
                             baseDispatchReceiver
                         } else {
                             // NB: for FE 1.0, this type cast is added by InterfaceObjectCallsLowering
@@ -1172,14 +1172,9 @@ class CallAndReferenceGenerator(
         return this
     }
 
-    private fun FirCallableSymbol<*>.isMethodOfAny(): Boolean {
+    private fun FirCallableSymbol<*>.isFunctionFromAny(): Boolean {
         if (this !is FirNamedFunctionSymbol) return false
-        if (receiverParameter != null) return false
+        return isMethodOfAny
-        return when (name) {
-            OperatorNameConventions.HASH_CODE, OperatorNameConventions.TO_STRING -> valueParameterSymbols.isEmpty()
-            OperatorNameConventions.EQUALS -> valueParameterSymbols.singleOrNull()?.resolvedReturnType?.isNullableAny == true
-            else -> false
-        }
     }
 
     private fun generateErrorCallExpression(

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/lazy/Fir2IrLazyClass.kt

@@ -17,7 +17,6 @@ import org.jetbrains.kotlin.fir.scopes.processClassifiersByName
 import org.jetbrains.kotlin.fir.scopes.unsubstitutedScope
 import org.jetbrains.kotlin.fir.symbols.impl.FirNamedFunctionSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirPropertySymbol
-import org.jetbrains.kotlin.fir.types.isNullableAny
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.declarations.lazy.IrMaybeDeserializedClass
@@ -27,9 +26,11 @@ import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.types.IrSimpleType
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
-import org.jetbrains.kotlin.ir.util.*
+import org.jetbrains.kotlin.ir.util.DeserializableClass
+import org.jetbrains.kotlin.ir.util.isComposite
+import org.jetbrains.kotlin.ir.util.isEnumClass
+import org.jetbrains.kotlin.ir.util.isObject
 import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.util.OperatorNameConventions
 import org.jetbrains.kotlin.utils.addIfNotNull
 
 class Fir2IrLazyClass(
@@ -239,13 +240,8 @@ class Fir2IrLazyClass(
         get() = fir.isNewPlaceForBodyGeneration == true
 
     private fun FirNamedFunctionSymbol.isAbstractMethodOfAny(): Boolean {
-        val fir = fir
+        if (modality != Modality.ABSTRACT) return false
-        if (fir.modality != Modality.ABSTRACT) return false
+        return isMethodOfAny
-        return when (fir.name) {
-            OperatorNameConventions.EQUALS -> fir.valueParameters.singleOrNull()?.returnTypeRef?.isNullableAny == true
-            OperatorNameConventions.HASH_CODE, OperatorNameConventions.TO_STRING -> fir.valueParameters.isEmpty()
-            else -> false
-        }
     }
 
     private var irLoaded: Boolean? = null

compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/utils/FirDeclarationUtil.kt

@@ -6,10 +6,13 @@
 package org.jetbrains.kotlin.fir.declarations.utils
 
 import org.jetbrains.kotlin.fir.declarations.*
+import org.jetbrains.kotlin.fir.symbols.impl.FirNamedFunctionSymbol
 import org.jetbrains.kotlin.fir.types.ConeClassLikeType
 import org.jetbrains.kotlin.fir.types.coneTypeSafe
+import org.jetbrains.kotlin.fir.types.isNullableAny
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.Name
+import org.jetbrains.kotlin.util.OperatorNameConventions
 
 val FirTypeAlias.expandedConeType: ConeClassLikeType? get() = expandedTypeRef.coneTypeSafe()
 
@@ -56,3 +59,12 @@ val FirMemberDeclaration.nameOrSpecialName: Name
         is FirTypeAlias ->
             this.name
     }
+
+val FirNamedFunctionSymbol.isMethodOfAny: Boolean
+    get() {
+        return when (name) {
+            OperatorNameConventions.EQUALS -> valueParameterSymbols.singleOrNull()?.resolvedReturnType?.isNullableAny == true
+            OperatorNameConventions.HASH_CODE, OperatorNameConventions.TO_STRING -> fir.valueParameters.isEmpty()
+            else -> false
+        }
+    }