diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
index e60e9922fbb..8c927f54130 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
@@ -38,17 +38,17 @@ class IrClassImpl(
     endOffset: Int,
     origin: IrDeclarationOrigin,
     override val symbol: IrClassSymbol,
-    override val name: Name,
-    override val kind: ClassKind,
-    visibility: Visibility,
-    modality: Modality,
-    override val isCompanion: Boolean,
-    override val isInner: Boolean,
-    override val isData: Boolean,
-    override val isExternal: Boolean,
-    override val isInline: Boolean,
-    override val isExpect: Boolean,
-    override val isFun: Boolean
+    override val name: Name = symbol.descriptor.name,
+    override val kind: ClassKind = symbol.descriptor.kind,
+    visibility: Visibility = symbol.descriptor.visibility,
+    modality: Modality = symbol.descriptor.modality,
+    override val isCompanion: Boolean = symbol.descriptor.isCompanionObject,
+    override val isInner: Boolean = symbol.descriptor.isInner,
+    override val isData: Boolean = symbol.descriptor.isData,
+    override val isExternal: Boolean = symbol.descriptor.isEffectivelyExternal(),
+    override val isInline: Boolean = symbol.descriptor.isInline,
+    override val isExpect: Boolean = symbol.descriptor.isExpect,
+    override val isFun: Boolean = symbol.descriptor.isFun
 ) :
     IrDeclarationBase<ClassCarrier>(startOffset, endOffset, origin),
     IrClass,
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
index 515a54c65c4..b0eeadf4414 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
@@ -32,13 +32,13 @@ class IrConstructorImpl(
     endOffset: Int,
     origin: IrDeclarationOrigin,
     override val symbol: IrConstructorSymbol,
-    name: Name,
-    visibility: Visibility,
+    name: Name = symbol.descriptor.name,
+    visibility: Visibility = symbol.descriptor.visibility,
     returnType: IrType,
-    isInline: Boolean,
-    isExternal: Boolean,
-    override val isPrimary: Boolean,
-    isExpect: Boolean
+    isInline: Boolean = symbol.descriptor.isInline,
+    isExternal: Boolean = symbol.descriptor.isEffectivelyExternal(),
+    override val isPrimary: Boolean = symbol.descriptor.isPrimary,
+    isExpect: Boolean = symbol.descriptor.isExpect
 ) :
     IrFunctionBase<ConstructorCarrier>(
         startOffset, endOffset, origin, name,
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt
index 532f00243c4..14e60105966 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt
@@ -36,13 +36,13 @@ class IrFieldImpl(
     endOffset: Int,
     origin: IrDeclarationOrigin,
     override val symbol: IrFieldSymbol,
-    override val name: Name,
+    override val name: Name = symbol.descriptor.name,
     override val type: IrType,
-    override val visibility: Visibility,
-    override val isFinal: Boolean,
-    override val isExternal: Boolean,
-    override val isStatic: Boolean,
-    override val isFakeOverride: Boolean
+    override val visibility: Visibility = symbol.descriptor.visibility,
+    override val isFinal: Boolean = !symbol.descriptor.isVar,
+    override val isExternal: Boolean = symbol.descriptor.isEffectivelyExternal(),
+    override val isStatic: Boolean = symbol.descriptor.dispatchReceiverParameter == null,
+    override val isFakeOverride: Boolean = origin == IrDeclarationOrigin.FAKE_OVERRIDE
 ) : IrDeclarationBase<FieldCarrier>(startOffset, endOffset, origin),
     IrField,
     FieldCarrier {
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
index 5a7354dcfe3..3d2b08be0f8 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
@@ -23,17 +23,17 @@ class IrFunctionImpl(
     endOffset: Int,
     origin: IrDeclarationOrigin,
     override val symbol: IrSimpleFunctionSymbol,
-    name: Name,
-    visibility: Visibility,
-    override val modality: Modality,
+    name: Name = symbol.descriptor.name,
+    visibility: Visibility = symbol.descriptor.visibility,
+    override val modality: Modality = symbol.descriptor.modality,
     returnType: IrType,
-    isInline: Boolean,
-    isExternal: Boolean,
-    override val isTailrec: Boolean,
-    override val isSuspend: Boolean,
-    override val isOperator: Boolean,
-    isExpect: Boolean,
-    override val isFakeOverride: Boolean
+    isInline: Boolean = symbol.descriptor.isInline,
+    isExternal: Boolean = symbol.descriptor.isExternal,
+    override val isTailrec: Boolean = symbol.descriptor.isTailrec,
+    override val isSuspend: Boolean = symbol.descriptor.isSuspend,
+    override val isOperator: Boolean = symbol.descriptor.isOperator,
+    isExpect: Boolean = symbol.descriptor.isExpect,
+    override val isFakeOverride: Boolean = origin == IrDeclarationOrigin.FAKE_OVERRIDE
 ) :
     IrFunctionBase<FunctionCarrier>(startOffset, endOffset, origin, name, visibility, isInline, isExternal, isExpect, returnType),
     IrSimpleFunction,
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt
index 73bc5000527..b65625f4d45 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt
@@ -32,9 +32,9 @@ class IrLocalDelegatedPropertyImpl(
     endOffset: Int,
     origin: IrDeclarationOrigin,
     override val symbol: IrLocalDelegatedPropertySymbol,
-    override val name: Name,
+    override val name: Name = symbol.descriptor.name,
     override val type: IrType,
-    override val isVar: Boolean
+    override val isVar: Boolean = symbol.descriptor.isVar
 ) :
     IrDeclarationBase<LocalDelegatedPropertyCarrier>(startOffset, endOffset, origin),
     IrLocalDelegatedProperty,
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt
index 1b70ae70174..020f37b9d72 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt
@@ -34,29 +34,15 @@ class IrTypeParameterImpl(
     endOffset: Int,
     origin: IrDeclarationOrigin,
     override val symbol: IrTypeParameterSymbol,
-    override val name: Name,
-    override val index: Int,
-    override val isReified: Boolean,
-    override val variance: Variance
+    override val name: Name = symbol.descriptor.name,
+    override val index: Int = symbol.descriptor.index,
+    override val isReified: Boolean = symbol.descriptor.isReified,
+    override val variance: Variance = symbol.descriptor.variance
 ) :
     IrDeclarationBase<TypeParameterCarrier>(startOffset, endOffset, origin),
     IrTypeParameter,
     TypeParameterCarrier {
 
-    constructor(
-        startOffset: Int,
-        endOffset: Int,
-        origin: IrDeclarationOrigin,
-        symbol: IrTypeParameterSymbol
-    ) :
-            this(
-                startOffset, endOffset, origin, symbol,
-                symbol.descriptor.name,
-                symbol.descriptor.index,
-                symbol.descriptor.isReified,
-                symbol.descriptor.variance
-            )
-
     constructor(
         startOffset: Int,
         endOffset: Int,
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt
index 7cb9cb7f739..5fc3793be2e 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt
@@ -35,12 +35,12 @@ class IrValueParameterImpl(
     endOffset: Int,
     origin: IrDeclarationOrigin,
     override val symbol: IrValueParameterSymbol,
-    override val name: Name,
-    override val index: Int,
+    override val name: Name = symbol.descriptor.name,
+    override val index: Int = symbol.descriptor.safeAs<ValueParameterDescriptor>()?.index ?: -1,
     override val type: IrType,
     override val varargElementType: IrType?,
-    override val isCrossinline: Boolean,
-    override val isNoinline: Boolean
+    override val isCrossinline: Boolean = symbol.descriptor.safeAs<ValueParameterDescriptor>()?.isCrossinline ?: false,
+    override val isNoinline: Boolean = symbol.descriptor.safeAs<ValueParameterDescriptor>()?.isNoinline ?: false
 ) :
     IrDeclarationBase<ValueParameterCarrier>(startOffset, endOffset, origin),
     IrValueParameter,
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt
index 4527c03bdd1..d3d8798aa91 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt
@@ -36,11 +36,11 @@ class IrVariableImpl(
     override val endOffset: Int,
     override var origin: IrDeclarationOrigin,
     override val symbol: IrVariableSymbol,
-    override val name: Name,
+    override val name: Name = symbol.descriptor.name,
     override val type: IrType,
-    override val isVar: Boolean,
-    override val isConst: Boolean,
-    override val isLateinit: Boolean
+    override val isVar: Boolean = symbol.descriptor.isVar,
+    override val isConst: Boolean = symbol.descriptor.isConst,
+    override val isLateinit: Boolean = symbol.descriptor.isLateInit
 ) : IrVariable {
 
     private var _parent: IrDeclarationParent? = null
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/SymbolTable.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/SymbolTable.kt
index 59ad7648f9c..897c066c566 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/SymbolTable.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/SymbolTable.kt
@@ -30,7 +30,6 @@ import org.jetbrains.kotlin.ir.symbols.*
 import org.jetbrains.kotlin.ir.symbols.impl.*
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.impl.IrUninitializedType
-import org.jetbrains.kotlin.resolve.descriptorUtil.isEffectivelyExternal
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DescriptorWithContainerSource
 
 interface IrProvider {
@@ -87,7 +86,10 @@ interface ReferenceSymbolTable {
     fun leaveScope(owner: DeclarationDescriptor)
 }
 
-open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: NameProvider = NameProvider.DEFAULT) : ReferenceSymbolTable {
+open class SymbolTable(
+    val signaturer: IdSignatureComposer,
+    private val nameProvider: NameProvider = NameProvider.DEFAULT
+) : ReferenceSymbolTable {
 
     @Suppress("LeakingThis")
     val lazyWrapper = IrLazySymbolTable(this)
@@ -375,15 +377,8 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
         classFactory: (IrClassSymbol) -> IrClass = {
             IrClassImpl(
                 startOffset, endOffset, origin, it,
-                nameProvider.nameForDeclaration(descriptor), descriptor.kind,
-                visibility, modality,
-                isCompanion = descriptor.isCompanionObject,
-                isInner = descriptor.isInner,
-                isData = descriptor.isData,
-                isExternal = descriptor.isExternal,
-                isInline = descriptor.isInline,
-                isExpect = descriptor.isExpect,
-                isFun = descriptor.isFun
+                nameProvider.nameForDeclaration(descriptor),
+                visibility = visibility, modality = modality,
             ).apply { metadata = MetadataSource.Class(it.descriptor) }
         }
     ): IrClass {
@@ -430,12 +425,7 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
             IrConstructorImpl(
                 startOffset, endOffset, origin, it,
                 nameProvider.nameForDeclaration(descriptor),
-                descriptor.visibility,
-                returnType = IrUninitializedType,
-                isInline = descriptor.isInline,
-                isExternal = descriptor.isEffectivelyExternal(),
-                isPrimary = descriptor.isPrimary,
-                isExpect = descriptor.isExpect
+                returnType = IrUninitializedType
             ).apply {
                 metadata = MetadataSource.Function(it.descriptor)
             }
@@ -530,10 +520,6 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
                 startOffset, endOffset, origin, it,
                 nameProvider.nameForDeclaration(descriptor),
                 type, visibility ?: it.descriptor.visibility,
-                isFinal = !descriptor.isVar,
-                isExternal = descriptor.isExternal,
-                isStatic = descriptor.dispatchReceiverParameter == null,
-                isFakeOverride = origin == IrDeclarationOrigin.FAKE_OVERRIDE
             ).apply {
                 metadata = MetadataSource.Property(it.descriptor)
             }
@@ -678,16 +664,7 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
             IrFunctionImpl(
                 startOffset, endOffset, origin, it,
                 nameProvider.nameForDeclaration(descriptor),
-                returnType = IrUninitializedType,
-                visibility = descriptor.visibility,
-                modality = descriptor.modality,
-                isInline = descriptor.isInline,
-                isExternal = descriptor.isExternal,
-                isTailrec = descriptor.isTailrec,
-                isSuspend = descriptor.isSuspend,
-                isOperator = descriptor.isOperator,
-                isExpect = descriptor.isExpect,
-                isFakeOverride = origin == IrDeclarationOrigin.FAKE_OVERRIDE
+                returnType = IrUninitializedType
             ).apply {
                 metadata = MetadataSource.Function(it.descriptor)
             }
@@ -739,11 +716,7 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
         origin: IrDeclarationOrigin,
         descriptor: TypeParameterDescriptor,
         typeParameterFactory: (IrTypeParameterSymbol) -> IrTypeParameter = {
-            IrTypeParameterImpl(
-                startOffset, endOffset, origin, it,
-                nameProvider.nameForDeclaration(descriptor),
-                descriptor.index, descriptor.isReified, descriptor.variance
-            )
+            IrTypeParameterImpl(startOffset, endOffset, origin, it, nameProvider.nameForDeclaration(descriptor))
         }
     ): IrTypeParameter =
         globalTypeParameterSymbolTable.declare(
@@ -767,11 +740,7 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
         origin: IrDeclarationOrigin,
         descriptor: TypeParameterDescriptor,
         typeParameterFactory: (IrTypeParameterSymbol) -> IrTypeParameter = {
-            IrTypeParameterImpl(
-                startOffset, endOffset, origin, it,
-                nameProvider.nameForDeclaration(descriptor),
-                descriptor.index, descriptor.isReified, descriptor.variance
-            )
+            IrTypeParameterImpl(startOffset, endOffset, origin, it, nameProvider.nameForDeclaration(descriptor))
         }
     ): IrTypeParameter =
         scopedTypeParameterSymbolTable.declare(
@@ -799,14 +768,10 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
         type: IrType,
         varargElementType: IrType? = null,
         valueParameterFactory: (IrValueParameterSymbol) -> IrValueParameter = {
-            val valueParameterDescriptor = descriptor as? ValueParameterDescriptor
             IrValueParameterImpl(
                 startOffset, endOffset, origin, it,
                 nameProvider.nameForDeclaration(descriptor),
-                valueParameterDescriptor?.index ?: -1,
-                type, varargElementType,
-                isCrossinline = valueParameterDescriptor?.isCrossinline ?: false,
-                isNoinline = valueParameterDescriptor?.isNoinline ?: false
+                type = type, varargElementType = varargElementType,
             )
         }
     ): IrValueParameter =
@@ -843,14 +808,7 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
         descriptor: VariableDescriptor,
         type: IrType,
         variableFactory: (IrVariableSymbol) -> IrVariable = {
-            IrVariableImpl(
-                startOffset, endOffset, origin, it,
-                nameProvider.nameForDeclaration(descriptor),
-                type,
-                isVar = descriptor.isVar,
-                isConst = descriptor.isConst,
-                isLateinit = descriptor.isLateInit
-            )
+            IrVariableImpl(startOffset, endOffset, origin, it, nameProvider.nameForDeclaration(descriptor), type)
         }
 
     ): IrVariable =
@@ -885,11 +843,7 @@ open class SymbolTable(val signaturer: IdSignatureComposer, val nameProvider: Na
         localDelegatedPropertySymbolTable.declareLocal(
             descriptor,
             { IrLocalDelegatedPropertySymbolImpl(descriptor) },
-            {
-                IrLocalDelegatedPropertyImpl(
-                    startOffset, endOffset, origin, it, nameProvider.nameForDeclaration(descriptor), type, descriptor.isVar
-                )
-            }
+            { IrLocalDelegatedPropertyImpl(startOffset, endOffset, origin, it, nameProvider.nameForDeclaration(descriptor), type) }
         )
 
     fun referenceLocalDelegatedProperty(descriptor: VariableDescriptorWithAccessors) =