[FIR] Don't miss annotations on inits

^KT-59874

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

@@ -1,11 +1,11 @@
 class A {
-    @ann init {}
-    @aaa init {}
+    <!WRONG_ANNOTATION_TARGET!>@ann<!> init {}
+    @<!UNRESOLVED_REFERENCE!>aaa<!> init {}
 }
 
 interface T {
-    @ann <!ANONYMOUS_INITIALIZER_IN_INTERFACE!>init<!> {}
-    @aaa <!ANONYMOUS_INITIALIZER_IN_INTERFACE!>init<!> {}
+    <!WRONG_ANNOTATION_TARGET!>@ann<!> <!ANONYMOUS_INITIALIZER_IN_INTERFACE!>init<!> {}
+    @<!UNRESOLVED_REFERENCE!>aaa<!> <!ANONYMOUS_INITIALIZER_IN_INTERFACE!>init<!> {}
 }
 
 annotation class ann

compiler/testData/diagnostics/tests/annotations/options/targets/init.fir.kt

@@ -1,6 +0,0 @@
-annotation class base
-
-@base class My {
-    @base init {
-    }
-}

compiler/testData/diagnostics/tests/annotations/options/targets/init.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 annotation class base
 
 @base class My {

compiler/testData/diagnostics/tests/modifiers/IllegalModifiers.fir.kt

@@ -85,9 +85,9 @@ abstract class IllegalModifiers6() {
     <!WRONG_MODIFIER_TARGET!>open<!> init {}
     <!WRONG_MODIFIER_TARGET!>final<!> init {}
 
-    <!WRONG_MODIFIER_TARGET!>public<!> @annotated init {}
+    <!WRONG_MODIFIER_TARGET!>public<!> <!WRONG_ANNOTATION_TARGET!>@annotated<!> init {}
 
-    <!WRONG_MODIFIER_TARGET!>private<!> @IllegalModifiers6() init {}
+    <!WRONG_MODIFIER_TARGET!>private<!> <!WRONG_ANNOTATION_TARGET!>@<!NOT_AN_ANNOTATION_CLASS!>IllegalModifiers6<!>()<!> init {}
 }
 
 // strange inappropriate modifiers usages