[K2] Fix EXPECTED_DECLARATION_WITH_BODY not reporting on property accessors

We don't want any `expect` function to have body. So we're sure no
new false-positive reports are introduced because of removal of
`isTopLevelOrInsideClass` condition.

^KT-59899 Fixed

compiler/testData/diagnostics/tests/multiplatform/headerClass/headerClassWithFunctionBody.fir.kt

@@ -18,8 +18,8 @@
     val prop: String = <!EXPECTED_PROPERTY_INITIALIZER!>"no"<!>
 
     var getSet: String
-        get() = "no"
-        set(value) {}
+        <!EXPECTED_DECLARATION_WITH_BODY!>get()<!> = "no"
+        <!EXPECTED_DECLARATION_WITH_BODY!>set(value)<!> {}
 
     <!EXPECTED_DECLARATION_WITH_BODY!>fun functionWithBody(x: Int): Int<!> {
         return x + 1

compiler/testData/diagnostics/tests/multiplatform/headerClass/memberPropertyKinds.fir.kt

@@ -17,10 +17,10 @@
     var backingFieldVar: String = <!EXPECTED_PROPERTY_INITIALIZER!>"no"<!>
 
     val customAccessorVal: String
-    get() = "no"
+    <!EXPECTED_DECLARATION_WITH_BODY!>get()<!> = "no"
     var customAccessorVar: String
-    get() = "no"
-    set(value) {}
+    <!EXPECTED_DECLARATION_WITH_BODY!>get()<!> = "no"
+    <!EXPECTED_DECLARATION_WITH_BODY!>set(value)<!> {}
 
     <!EXPECTED_LATEINIT_PROPERTY!>lateinit<!> var lateinitVar: String