Store file-level annotations in IrFile (should be on some descriptor, really).

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/ModuleGenerator.kt

@@ -33,9 +33,12 @@ class ModuleGenerator(override val context: GeneratorContext) : Generator {
             val irFile = IrFileImpl(fileEntry, fileName, packageFragmentDescriptor)
             context.sourceManager.putFileEntry(irFile, fileEntry)
 
+            for (ktAnnotationEntry in ktFile.annotationEntries) {
+                irFile.addAnnotation(getOrFail(BindingContext.ANNOTATION, ktAnnotationEntry))
+            }
+
             for (ktDeclaration in ktFile.declarations) {
-                val irDeclaration = irDeclarationGenerator.generateMemberDeclaration(ktDeclaration)
-                irFile.addDeclaration(irDeclaration)
+                irFile.addDeclaration(irDeclarationGenerator.generateMemberDeclaration(ktDeclaration))
             }
 
             irModule.addFile(irFile)

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

@@ -17,13 +17,16 @@
 package org.jetbrains.kotlin.ir.declarations
 
 import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
+import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.ir.*
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
+import org.jetbrains.kotlin.utils.SmartList
 import java.util.*
 
 interface IrFile : IrElement {
     val name: String
     val fileEntry: SourceLocationManager.FileEntry
+    val fileAnnotations: List<AnnotationDescriptor>
     val packageFragmentDescriptor: PackageFragmentDescriptor
     val declarations: List<IrDeclaration>
 }
@@ -33,6 +36,12 @@ class IrFileImpl(
         override val name: String,
         override val packageFragmentDescriptor: PackageFragmentDescriptor
 ) : IrElementBase(0, fileEntry.maxOffset), IrFile {
+    override val fileAnnotations: MutableList<AnnotationDescriptor> = SmartList()
+
+    fun addAnnotation(annotation: AnnotationDescriptor) {
+        fileAnnotations.add(annotation)
+    }
+
     override val declarations: MutableList<IrDeclaration> = ArrayList()
 
     fun addDeclaration(declaration: IrDeclaration) {

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

@@ -23,6 +23,7 @@ import org.jetbrains.kotlin.ir.expressions.*
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
+import org.jetbrains.kotlin.renderer.DescriptorRenderer
 import org.jetbrains.kotlin.utils.Printer
 
 fun IrElement.dump(): String {
@@ -41,10 +42,28 @@ class DumpIrTreeVisitor(out: Appendable): IrElementVisitor<Unit, String> {
     val printer = Printer(out, "  ")
     val elementRenderer = RenderIrElementVisitor()
 
+    companion object {
+        val ANNOTATIONS_RENDERER = DescriptorRenderer.withOptions { verbose = true }
+    }
+
     override fun visitElement(element: IrElement, data: String) {
         element.dumpLabeledSubTree(data)
     }
 
+    override fun visitFile(declaration: IrFile, data: String) {
+        declaration.dumpLabeledElementWith(data) {
+            if (declaration.fileAnnotations.isNotEmpty()) {
+                printer.println("fileAnnotations:")
+                indented {
+                    declaration.fileAnnotations.forEach {
+                        printer.println(ANNOTATIONS_RENDERER.renderAnnotation(it))
+                    }
+                }
+            }
+            declaration.declarations.forEach { it.accept(this, "") }
+        }
+    }
+
     override fun visitFunction(declaration: IrFunction, data: String) {
         visitFunctionWithParameters(declaration, data)
     }

compiler/testData/ir/irText/declarations/fileWithAnnotations.kt

@@ -0,0 +1,6 @@
+// WITH_RUNTIME
+@file:JvmName("FileWithAnnotations")
+
+fun foo() {}
+
+val bar = 42

compiler/testData/ir/irText/declarations/fileWithAnnotations.txt

@@ -0,0 +1,8 @@
+FILE /fileWithAnnotations.kt
+  fileAnnotations:
+    @kotlin.jvm.JvmName(name = "FileWithAnnotations")
+  FUN public fun foo(): kotlin.Unit
+    BLOCK_BODY
+  PROPERTY public val bar: kotlin.Int = 42
+    EXPRESSION_BODY
+      CONST Int type=kotlin.Int value='42'

compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java

@@ -202,6 +202,12 @@ public class IrTextTestCaseGenerated extends AbstractIrTextTestCase {
             doTest(fileName);
         }
 
+        @TestMetadata("fileWithAnnotations.kt")
+        public void testFileWithAnnotations() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/ir/irText/declarations/fileWithAnnotations.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("localDelegatedProperties.kt")
         public void testLocalDelegatedProperties() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/ir/irText/declarations/localDelegatedProperties.kt");