Split property use-site targets during FIR building

compiler/testData/diagnostics/tests/annotations/withUseSiteTarget/kt26638.fir.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER
-// !LANGUAGE: +ProhibitRepeatedUseSiteTargetAnnotations
+// !LANGUAGE: -ProhibitRepeatedUseSiteTargetAnnotations
 
 // Ann is not repeatable
 annotation class Ann(val x: Int)
@@ -17,6 +17,6 @@ var c = " "
     set(@Ann(20) x) {}
 
 <!REPEATED_ANNOTATION!>@get:Ann(10)<!>
-<!REPEATED_ANNOTATION, REPEATED_ANNOTATION!>@get:Ann(20)<!>
+<!REPEATED_ANNOTATION!>@get:Ann(20)<!>
 val d: String
     @Ann(30) <!REPEATED_ANNOTATION!>@Ann(40)<!> get() = "foo"

compiler/testData/diagnostics/tests/annotations/withUseSiteTarget/kt26638.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 // !LANGUAGE: -ProhibitRepeatedUseSiteTargetAnnotations
 

compiler/testData/diagnostics/tests/annotations/withUseSiteTarget/kt26638_after.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 // !LANGUAGE: +ProhibitRepeatedUseSiteTargetAnnotations
 

compiler/testData/diagnostics/tests/annotations/withUseSiteTarget/repeatable.fir.kt

@@ -46,12 +46,12 @@ annotation class fieldOrPropAnn
 annotation class getSetAndParamAnn
 
 public class B(<!WRONG_ANNOTATION_TARGET_WITH_USE_SITE_TARGET!>@param:fieldOrPropAnn<!> @fieldOrPropAnn val x: Int,
-               @property:fieldOrPropAnn <!REPEATED_ANNOTATION, REPEATED_ANNOTATION!>@fieldOrPropAnn<!> val y: Int) {
+               @property:fieldOrPropAnn <!REPEATED_ANNOTATION!>@fieldOrPropAnn<!> val y: Int) {
     @fieldOrPropAnn @field:fieldOrPropAnn
     val z: Int = 42
 
     <!WRONG_ANNOTATION_TARGET!>@getSetAndParamAnn<!>
-    <!REPEATED_ANNOTATION!>@setparam:getSetAndParamAnn<!>
+    @setparam:getSetAndParamAnn
     var w: Int
         @getSetAndParamAnn <!REPEATED_ANNOTATION!>@get:getSetAndParamAnn<!> get() = 0
         // See KT-15470: fake INAPPLICABLE_TARGET_ON_PROPERTY