Extract interface out from KotlinCacheService to provide separate implementation in Eclipse plugin

idea/ide-common/src/org/jetbrains/kotlin/caches/resolve/KotlinCacheService.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2010-2015 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.caches.resolve
+
+import com.intellij.openapi.components.ServiceManager
+import com.intellij.openapi.project.Project
+import org.jetbrains.kotlin.idea.resolve.ResolutionFacade
+import org.jetbrains.kotlin.psi.KtElement
+import org.jetbrains.kotlin.resolve.diagnostics.KotlinSuppressCache
+
+interface KotlinCacheService {
+    companion object {
+        fun getInstance(project: Project): KotlinCacheService = ServiceManager.getService(project, KotlinCacheService::class.java)!!
+    }
+
+    fun getResolutionFacade(elements: List<KtElement>): ResolutionFacade
+
+    fun getSuppressionCache(): KotlinSuppressCache
+}