Scripting: update scripts in source roots handling

#KT-52525 fixed
related to #KT-52735

plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/definitions/ScriptCompilationConfigurationFromDefinition.kt

@@ -36,6 +36,10 @@ class ScriptCompilationConfigurationFromDefinition(
         platform(scriptDefinition.platform)
         @Suppress("DEPRECATION")
         compilerOptions.putIfAny(scriptDefinition.additionalCompilerArguments)
+        // TODO: remove this exception when gradle switches to the new definitions and sets the property accordingly
+        if (scriptDefinition.fileExtension == "gradle.kts") {
+            isStandalone(false)
+        }
         ide {
             acceptedLocations.put(scriptDefinition.scriptExpectedLocations.mapLegacyExpectedLocations())
         }