Fix warning in ScriptConfigurationHighlightingTest

In case of exception from dependencies resolver
we do not threat the configurations as up-to-date,
so the reloading process will be started during test
despite updateScriptDependenciesSynchronously called at startup.
This will lead to the warning from checkHighlighting
because if script reports are different we rehighlight the script.
Note that test won't fail.

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

@@ -8,11 +8,14 @@ import kotlin.script.experimental.location.*
 
 class TestDependenciesResolver : DependenciesResolver {
     override fun resolve(
-            scriptContents: ScriptContents,
-            environment: Environment
+        scriptContents: ScriptContents,
+        environment: Environment
     ): DependenciesResolver.ResolveResult {
-        error("Exception from resolver")
+        throw ex
     }
+
+    // this is needed for equality of script reports to avoid highlighting restart during test
+    private val ex = IllegalStateException("Exception from resolver")
 }
 
 @ScriptExpectedLocations([ScriptExpectedLocation.Everywhere])