Show filePattern in settings for new script definitions if present

idea/src/org/jetbrains/kotlin/idea/script/configuration/KotlinScriptDefinitionsModel.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -40,6 +40,7 @@ class KotlinScriptDefinitionsModel private constructor(definitions: MutableList<
         override fun valueOf(item: KotlinScriptDefinitionsModelDescriptor): String {
             val definition = item.definition
             return definition.asLegacyOrNull<KotlinScriptDefinitionFromAnnotatedTemplate>()?.scriptFilePattern?.pattern
+                ?: (definition as? ScriptDefinition.FromConfigurations)?.filePathPattern
                 ?: "." + definition.fileExtension
         }
     }

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

@@ -126,7 +126,7 @@ abstract class ScriptDefinition : UserDataHolderBase() {
             )
         }
 
-        private val filePathPattern by lazy {
+        val filePathPattern by lazy {
             compilationConfiguration[ScriptCompilationConfiguration.filePathPattern]?.takeIf { it.isNotBlank() }
         }