IrClass.isInner

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/IrClass.kt

@@ -34,6 +34,7 @@ interface IrClass : IrSymbolDeclaration<IrClassSymbol>, IrDeclarationContainer,
     val visibility: Visibility
     val modality: Modality
     val isCompanion: Boolean
+    val isInner: Boolean
     val isData: Boolean
     val isExternal: Boolean
 

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt

@@ -40,6 +40,7 @@ class IrClassImpl(
     override val visibility: Visibility,
     override val modality: Modality,
     override val isCompanion: Boolean,
+    override val isInner: Boolean,
     override val isData: Boolean,
     override val isExternal: Boolean
 ) : IrDeclarationBase(startOffset, endOffset, origin),
@@ -50,8 +51,10 @@ class IrClassImpl(
                 startOffset, endOffset, origin, symbol,
                 symbol.descriptor.name, symbol.descriptor.kind,
                 symbol.descriptor.visibility, symbol.descriptor.modality,
-                symbol.descriptor.isCompanionObject, symbol.descriptor.isData,
-                symbol.descriptor.isEffectivelyExternal()
+                isCompanion = symbol.descriptor.isCompanionObject,
+                isInner = symbol.descriptor.isInner,
+                isData = symbol.descriptor.isData,
+                isExternal = symbol.descriptor.isEffectivelyExternal()
             )
 
     constructor(startOffset: Int, endOffset: Int, origin: IrDeclarationOrigin, descriptor: ClassDescriptor) :

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt

@@ -135,6 +135,7 @@ class RenderIrElementVisitor : IrElementVisitor<String, Nothing?> {
     private fun IrClass.renderClassFlags() =
         renderFlagsList(
             "companion".takeIf { isCompanion },
+            "inner".takeIf { isInner },
             "data".takeIf { isData },
             "external".takeIf { isExternal }
         )