IR: copy annotations when making lateinit fields nullable

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/LateinitLowering.kt

@@ -48,6 +48,7 @@ open class LateinitLowering(val context: CommonBackendContext) : FileLoweringPas
             }.apply {
                 parent = originalField.parent
                 correspondingPropertySymbol = originalField.correspondingPropertySymbol
+                annotations += originalField.annotations
             }
         }
     }

compiler/testData/codegen/box/annotations/annotationsOnLateinitFields.kt

@@ -0,0 +1,15 @@
+// WITH_REFLECT
+// TARGET_BACKEND: JVM
+
+@Target(AnnotationTarget.FIELD)
+annotation class Ann
+
+class C {
+    @Ann
+    lateinit var x0: String
+}
+
+fun box(): String {
+    require(C::class.java.getDeclaredField("x0")?.getAnnotation(Ann::class.java) != null)
+    return "OK"
+}

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -76,6 +76,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/annotations/annotationsOnLateinitAccessors.kt");
         }
 
+        @TestMetadata("annotationsOnLateinitFields.kt")
+        public void testAnnotationsOnLateinitFields() throws Exception {
+            runTest("compiler/testData/codegen/box/annotations/annotationsOnLateinitFields.kt");
+        }
+
         @TestMetadata("annotationsOnNonExistentAccessors.kt")
         public void testAnnotationsOnNonExistentAccessors() throws Exception {
             runTest("compiler/testData/codegen/box/annotations/annotationsOnNonExistentAccessors.kt");

compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -81,6 +81,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/annotations/annotationsOnLateinitAccessors.kt");
         }
 
+        @TestMetadata("annotationsOnLateinitFields.kt")
+        public void testAnnotationsOnLateinitFields() throws Exception {
+            runTest("compiler/testData/codegen/box/annotations/annotationsOnLateinitFields.kt");
+        }
+
         @TestMetadata("annotationsOnNonExistentAccessors.kt")
         public void testAnnotationsOnNonExistentAccessors() throws Exception {
             runTest("compiler/testData/codegen/box/annotations/annotationsOnNonExistentAccessors.kt");

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -76,6 +76,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/annotations/annotationsOnLateinitAccessors.kt");
         }
 
+        @TestMetadata("annotationsOnLateinitFields.kt")
+        public void testAnnotationsOnLateinitFields() throws Exception {
+            runTest("compiler/testData/codegen/box/annotations/annotationsOnLateinitFields.kt");
+        }
+
         @TestMetadata("annotationsOnNonExistentAccessors.kt")
         public void testAnnotationsOnNonExistentAccessors() throws Exception {
             runTest("compiler/testData/codegen/box/annotations/annotationsOnNonExistentAccessors.kt");