KT-55288: Add diagnostics test showing that issue is fixed in K2

^KT-55288: Fixed

compiler/testData/diagnostics/tests/annotations/AnnotatedNullableTypes.fir.kt

@@ -0,0 +1,10 @@
+annotation class Ann
+
+val a: <!WRONG_ANNOTATION_TARGET!>@Ann<!> String? = ""
+val b: (<!WRONG_ANNOTATION_TARGET!>@Ann<!> String)? = "" // false negative in K1, OK in K2
+
+@Target(AnnotationTarget.TYPE)
+annotation class TypeAnn
+
+val c: @TypeAnn String? = ""
+val d: (@TypeAnn String)? = ""

compiler/testData/diagnostics/tests/annotations/AnnotatedNullableTypes.kt

@@ -0,0 +1,10 @@
+annotation class Ann
+
+val a: <!WRONG_ANNOTATION_TARGET!>@Ann<!> String? = ""
+val b: (@Ann String)? = "" // false negative in K1, OK in K2
+
+@Target(AnnotationTarget.TYPE)
+annotation class TypeAnn
+
+val c: @TypeAnn String? = ""
+val d: (@TypeAnn String)? = ""

compiler/testData/diagnostics/tests/annotations/AnnotatedNullableTypes.txt

@@ -0,0 +1,20 @@
+package
+
+public val a: @Ann kotlin.String? = ""
+public val b: @Ann kotlin.String? = ""
+public val c: @TypeAnn kotlin.String? = ""
+public val d: @TypeAnn kotlin.String? = ""
+
+public final annotation class Ann : kotlin.Annotation {
+    public constructor Ann()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.TYPE}) public final annotation class TypeAnn : kotlin.Annotation {
+    public constructor TypeAnn()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}