[Test] Don't override manually registered services during test configuration

There are two ways of test service registration:
- manual call to `useAdditionalServices` in abstract test runner
- using of `additionalServices` property in one of test entity (e.g. in handler)

Services are registered in the same order (manual first, automatic second)

This led to the situation that if there was registered more specific
  implementation of the service in the test configuration, it will be
  overridden with regular implementation from handler, which is fixed
  by this commit

compiler/test-infrastructure/tests/org/jetbrains/kotlin/test/services/TestServices.kt

@@ -39,7 +39,10 @@ class TestServices : ComponentArrayOwner<TestService, TestService>(){
         }
     }
 
-    fun register(data: ServiceRegistrationData) {
+    fun register(data: ServiceRegistrationData, skipAlreadyRegistered: Boolean) {
+        if (skipAlreadyRegistered && getOrNull(data.kClass) != null) {
+            return
+        }
         registerComponent(data.kClass, data.serviceConstructor(this))
     }
 
@@ -47,8 +50,8 @@ class TestServices : ComponentArrayOwner<TestService, TestService>(){
         registerComponent(kClass, service)
     }
 
-    fun register(data: List<ServiceRegistrationData>) {
-        data.forEach { register(it) }
+    fun register(data: List<ServiceRegistrationData>, skipAlreadyRegistered: Boolean) {
+        data.forEach { register(it, skipAlreadyRegistered) }
     }
 }