Make sure template classpath is always among script dependencies

idea/testData/script/definition/highlighting/emptyAsyncResolver/script.kts

@@ -0,0 +1,3 @@
+val j: Int = i
+
+val s: String = str

idea/testData/script/definition/highlighting/emptyAsyncResolver/template/template.kt

@@ -0,0 +1,23 @@
+package custom.scriptDefinition
+
+import java.io.File
+import kotlin.script.dependencies.*
+import kotlin.script.dependencies.experimental.*
+import kotlin.script.templates.ScriptTemplateDefinition
+
+class TestDependenciesResolver : AsyncDependenciesResolver {
+    override suspend fun resolveAsync(
+            scriptContents: ScriptContents,
+            environment: Environment
+    ): DependenciesResolver.ResolveResult {
+        return ScriptDependencies.Empty.asSuccess()
+    }
+}
+
+@ScriptTemplateDefinition(TestDependenciesResolver::class, scriptFilePattern = "script.kts")
+open class Template: Base()
+
+open class Base {
+    val i = 3
+    val str = ""
+}