[FIR] Mark implicit types in accessors as fake

To not check their types in deprecation checker

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/extended/RedundantSetterParameterTypeChecker.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.fir.analysis.checkers.extended
 
+import org.jetbrains.kotlin.fir.FirFakeSourceElementKind
 import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
 import org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirPropertyChecker
 import org.jetbrains.kotlin.fir.analysis.diagnostics.DiagnosticReporter
@@ -21,7 +22,7 @@ object RedundantSetterParameterTypeChecker : FirPropertyChecker() {
         val propertyTypeSource = declaration.returnTypeRef.source
         val setterParameterTypeSource = valueParameter.returnTypeRef.source ?: return
 
-        if (setterParameterTypeSource != propertyTypeSource) {
+        if (setterParameterTypeSource.kind !is FirFakeSourceElementKind && setterParameterTypeSource != propertyTypeSource) {
             reporter.reportOn(setterParameterTypeSource, REDUNDANT_SETTER_PARAMETER_TYPE, context)
         }
     }

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/type/FirDeprecatedTypeChecker.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.fir.analysis.checkers.type
 
+import org.jetbrains.kotlin.fir.FirFakeSourceElementKind
 import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
 import org.jetbrains.kotlin.fir.analysis.checkers.context.findClosest
 import org.jetbrains.kotlin.fir.analysis.checkers.expression.FirDeprecationChecker
@@ -17,11 +18,11 @@ import org.jetbrains.kotlin.fir.types.coneTypeSafe
 
 object FirDeprecatedTypeChecker : FirTypeRefChecker() {
     override fun check(typeRef: FirTypeRef, context: CheckerContext, reporter: DiagnosticReporter) {
-        if (context.findClosest<FirPropertyAccessor>() != null) return
-
+        val source = typeRef.source ?: return
+        if (source.kind is FirFakeSourceElementKind) return
         val resolved = typeRef.coneTypeSafe<ConeClassLikeType>() ?: return
         val symbol = resolved.lookupTag.toSymbol(context.session) ?: return
 
-        FirDeprecationChecker.reportDeprecationIfNeeded(typeRef.source, symbol, null, context, reporter)
+        FirDeprecationChecker.reportDeprecationIfNeeded(source, symbol, null, context, reporter)
     }
 }

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/converter/DeclarationsConverter.kt

@@ -1233,10 +1233,11 @@ class DeclarationsConverter(
         var modifiers = Modifier()
         var isGetter = true
         var returnType: FirTypeRef? = null
+        val propertyTypeRefToUse = propertyTypeRef.copyWithNewSourceKind(FirFakeSourceElementKind.ImplicitTypeRef)
         var firValueParameters: FirValueParameter = buildDefaultSetterValueParameter {
             moduleData = baseModuleData
             origin = FirDeclarationOrigin.Source
-            returnTypeRef = propertyTypeRef
+            returnTypeRef = propertyTypeRefToUse
             symbol = FirValueParameterSymbol(NAME_FOR_DEFAULT_VALUE_PARAMETER)
         }
         var block: LighterASTNode? = null
@@ -1248,7 +1249,7 @@ class DeclarationsConverter(
                 SET_KEYWORD -> isGetter = false
                 MODIFIER_LIST -> modifiers = convertModifierList(it)
                 TYPE_REFERENCE -> returnType = convertType(it)
-                VALUE_PARAMETER_LIST -> firValueParameters = convertSetterParameter(it, propertyTypeRef)
+                VALUE_PARAMETER_LIST -> firValueParameters = convertSetterParameter(it, propertyTypeRefToUse)
                 CONTRACT_EFFECT_LIST -> outerContractDescription = obtainContractDescription(it)
                 BLOCK -> block = it
                 else -> if (it.isExpression()) expression = it
@@ -1272,7 +1273,7 @@ class DeclarationsConverter(
                     sourceElement,
                     baseModuleData,
                     FirDeclarationOrigin.Source,
-                    propertyTypeRef,
+                    propertyTypeRefToUse,
                     accessorVisibility,
                     isGetter
                 )
@@ -1287,7 +1288,7 @@ class DeclarationsConverter(
             source = sourceElement
             moduleData = baseModuleData
             origin = FirDeclarationOrigin.Source
-            returnTypeRef = returnType ?: if (isGetter) propertyTypeRef else implicitUnitType
+            returnTypeRef = returnType ?: if (isGetter) propertyTypeRefToUse else implicitUnitType
             symbol = FirPropertyAccessorSymbol()
             this.isGetter = isGetter
             this.status = status

compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder/RawFirBuilder.kt

@@ -368,6 +368,7 @@ open class RawFirBuilder(
                     isExternal = property.hasModifier(EXTERNAL_KEYWORD) ||
                             this@toFirPropertyAccessor?.hasModifier(EXTERNAL_KEYWORD) == true
                 }
+            val propertyTypeRefToUse = propertyTypeRef.copyWithNewSourceKind(FirFakeSourceElementKind.ImplicitTypeRef)
             return when {
                 this != null && hasBody() -> {
                     // Property has a non-default getter or setter.
@@ -379,7 +380,7 @@ open class RawFirBuilder(
                         moduleData = baseModuleData
                         origin = FirDeclarationOrigin.Source
                         returnTypeRef = if (isGetter) {
-                            returnTypeReference?.convertSafe() ?: propertyTypeRef
+                            returnTypeReference?.convertSafe() ?: propertyTypeRefToUse
                         } else {
                             returnTypeReference.toFirOrUnitType()
                         }
@@ -387,13 +388,13 @@ open class RawFirBuilder(
                         this.status = status
                         extractAnnotationsTo(this)
                         this@RawFirBuilder.context.firFunctionTargets += accessorTarget
-                        extractValueParametersTo(this, propertyTypeRef)
+                        extractValueParametersTo(this, propertyTypeRefToUse)
                         if (!isGetter && valueParameters.isEmpty()) {
                             valueParameters += buildDefaultSetterValueParameter {
                                 this.source = source.fakeElement(FirFakeSourceElementKind.DefaultAccessor)
                                 moduleData = baseModuleData
                                 origin = FirDeclarationOrigin.Source
-                                returnTypeRef = propertyTypeRef
+                                returnTypeRef = propertyTypeRefToUse
                                 symbol = FirValueParameterSymbol(NAME_FOR_DEFAULT_VALUE_PARAMETER)
                             }
                         }
@@ -420,7 +421,7 @@ open class RawFirBuilder(
                             propertySource,
                             baseModuleData,
                             FirDeclarationOrigin.Source,
-                            propertyTypeRef,
+                            propertyTypeRefToUse,
                             accessorVisibility,
                             isGetter
                         )

compiler/testData/diagnostics/tests/deprecated/typeUsage.kt

@@ -24,8 +24,8 @@ class Properties {
     var y : <!DEPRECATION!>Obsolete<!> = <!DEPRECATION!>Obsolete<!>()
 
     var n : <!DEPRECATION!>Obsolete<!>
-        get() = <!DEPRECATION!>Obsolete<!>()
-        set(value) {}
+    get() = <!DEPRECATION!>Obsolete<!>()
+    set(value) {}
 }
 
 fun param(param: <!DEPRECATION!>Obsolete<!>) { param.use() }

compiler/testData/diagnostics/testsWithStdLib/annotations/jvmDefault/propertyAccessor.fir.kt

@@ -1,14 +0,0 @@
-// !JVM_TARGET: 1.8
-// !JVM_DEFAULT_MODE: enable
-
-interface B {
-
-    @<!DEPRECATION!>JvmDefault<!>
-    val prop1: String
-    <!WRONG_ANNOTATION_TARGET!>@JvmDefault<!> get() = ""
-
-
-    var prop2: String
-        <!WRONG_ANNOTATION_TARGET!>@JvmDefault<!> get() = ""
-        <!WRONG_ANNOTATION_TARGET!>@JvmDefault<!> set(value) {}
-}

compiler/testData/diagnostics/testsWithStdLib/annotations/jvmDefault/propertyAccessor.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !JVM_TARGET: 1.8
 // !JVM_DEFAULT_MODE: enable