KT-6178 False "Overriden methods are not annotated" when using delegation

#KT-6178 Fixed

compiler/testData/asJava/lightClasses/delegation/ExternalAnnotations.java

@@ -0,0 +1,6 @@
+public final class WithPlatformTypes implements kotlin.jvm.internal.KObject, java.lang.Iterable<java.lang.String> {
+    public WithPlatformTypes(@org.jetbrains.annotations.NotNull java.lang.Iterable<java.lang.String> i) { /* compiled code */ }
+
+    @org.jetbrains.annotations.NotNull
+    public java.util.Iterator<java.lang.String> iterator() { /* compiled code */ }
+}

compiler/testData/asJava/lightClasses/delegation/ExternalAnnotations.kt

@@ -0,0 +1,3 @@
+// WithPlatformTypes
+
+class WithPlatformTypes(i: java.lang.Iterable<String>) : java.lang.Iterable<String> by i

compiler/testData/asJava/lightClasses/delegation/WithPlatformTypes.java

@@ -0,0 +1,6 @@
+public final class WithPlatformTypes implements kotlin.jvm.internal.KObject, p.J {
+    public WithPlatformTypes(@org.jetbrains.annotations.NotNull p.J j) { /* compiled code */ }
+
+    @org.jetbrains.annotations.NotNull
+    public java.lang.String foo(@org.jetbrains.annotations.NotNull java.lang.String b) { /* compiled code */ }
+}

compiler/testData/asJava/lightClasses/delegation/WithPlatformTypes.kt

@@ -0,0 +1,17 @@
+// WithPlatformTypes
+
+// FILE: p/J.java
+package p;
+
+import org.jetbrains.annotations.NotNull;
+
+public interface J {
+    @NotNull
+    String foo(@NotNull String b);
+}
+
+// FILE: k.kt
+
+import p.*
+
+class WithPlatformTypes(j: J) : J by j