Clarify error message for abstract property in primary constructor

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrorsDefaultMessages.kt

@@ -1710,7 +1710,7 @@ object FirErrorsDefaultMessages : BaseDiagnosticRendererFactory() {
             REDUNDANT_EXPLICIT_BACKING_FIELD,
             "There's no need for an explicit backing field declaration if it has the same type as the property"
         )
-        map.put(ABSTRACT_PROPERTY_IN_PRIMARY_CONSTRUCTOR_PARAMETERS, "This property cannot be declared abstract")
+        map.put(ABSTRACT_PROPERTY_IN_PRIMARY_CONSTRUCTOR_PARAMETERS, "Property in primary constructor cannot be declared abstract")
         map.put(LOCAL_VARIABLE_WITH_TYPE_PARAMETERS_WARNING, "Type parameters for local variables are deprecated")
         map.put(LOCAL_VARIABLE_WITH_TYPE_PARAMETERS, "Local variables are not allowed to have type parameters")
         map.put(EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS, "A property access cannot have explicit type arguments")

compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering/DefaultErrorMessages.java

@@ -281,7 +281,7 @@ public class DefaultErrorMessages {
         MAP.put(COMPONENT_FUNCTION_RETURN_TYPE_MISMATCH, "''{0}()'' function returns ''{1}'', but ''{2}'' is expected",
                                                                                     TO_STRING, RENDER_TYPE, RENDER_TYPE);
 
-        MAP.put(ABSTRACT_PROPERTY_IN_PRIMARY_CONSTRUCTOR_PARAMETERS, "This property cannot be declared abstract");
+        MAP.put(ABSTRACT_PROPERTY_IN_PRIMARY_CONSTRUCTOR_PARAMETERS, "Property in primary constructor cannot be declared abstract");
         MAP.put(ABSTRACT_PROPERTY_WITH_INITIALIZER, "Property with initializer cannot be abstract");
         MAP.put(ABSTRACT_PROPERTY_WITH_GETTER, "Property with getter implementation cannot be abstract");
         MAP.put(ABSTRACT_PROPERTY_WITH_SETTER, "Property with setter implementation cannot be abstract");