IrDeclaration has annotations

Note that acceptChildren doesn't traverse them (yet?).

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

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.ir.declarations
+
+import org.jetbrains.kotlin.ir.expressions.IrExpression
+
+interface IrAnnotationContainer {
+    val annotations: MutableList<IrExpression>
+}

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

@@ -26,7 +26,7 @@ interface IrSymbolOwner : IrElement {
     val symbol: IrSymbol
 }
 
-interface IrDeclaration : IrStatement {
+interface IrDeclaration : IrStatement, IrAnnotationContainer {
     val descriptor: DeclarationDescriptor
     val declarationKind: IrDeclarationKind
     val origin: IrDeclarationOrigin

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

@@ -37,7 +37,7 @@ interface IrExternalPackageFragment : IrPackageFragment {
     override val symbol: IrExternalPackageFragmentSymbol
 }
 
-interface IrFile : IrPackageFragment {
+interface IrFile : IrPackageFragment, IrAnnotationContainer {
     override val symbol: IrFileSymbol
 
     val fileEntry: SourceManager.FileEntry

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

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.ir.IrElementBase
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
+import org.jetbrains.kotlin.ir.expressions.IrExpression
 
 abstract class IrDeclarationBase(
     startOffset: Int,
@@ -29,4 +30,6 @@ abstract class IrDeclarationBase(
     IrDeclaration {
 
     override lateinit var parent: IrDeclarationParent
+
+    override val annotations: MutableList<IrExpression> = ArrayList()
 }

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

@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.ir.IrElementBase
 import org.jetbrains.kotlin.ir.SourceManager
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.declarations.IrFile
+import org.jetbrains.kotlin.ir.expressions.IrExpression
 import org.jetbrains.kotlin.ir.symbols.IrFileSymbol
 import org.jetbrains.kotlin.ir.symbols.impl.IrFileSymbolImpl
 import org.jetbrains.kotlin.ir.visitors.IrElementTransformer
@@ -29,6 +30,7 @@ import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.utils.SmartList
 import java.util.*
+import kotlin.collections.ArrayList
 
 class IrFileImpl(
     override val fileEntry: SourceManager.FileEntry,
@@ -62,6 +64,8 @@ class IrFileImpl(
 
     override val declarations: MutableList<IrDeclaration> = ArrayList()
 
+    override val annotations: MutableList<IrExpression> = ArrayList()
+
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R =
         visitor.visitFile(this, data)