GradleBuildRoot: don't store references to virtual files

idea/idea-gradle/src/org/jetbrains/kotlin/idea/scripting/gradle/roots/GradleBuildRoot.kt

@@ -46,7 +46,7 @@ sealed class GradleBuildRoot {
 
         abstract val projectRoots: Collection<String>
 
-        private val dir: VirtualFile?
+        val dir: VirtualFile?
             get() = LocalFileSystem.getInstance().findFileByPath(pathPrefix)
 
         private lateinit var lastModifiedFiles: LastModifiedFiles
@@ -107,15 +107,13 @@ sealed class GradleBuildRoot {
      */
     class Imported(
         override val manager: GradleBuildRootsManager,
-        val dir: VirtualFile,
+        override val pathPrefix: String,
         val javaHome: File?,
         val data: GradleBuildRootData
     ) : Linked() {
         val project: Project
             get() = manager.project
 
-        override val pathPrefix: String = dir.path
-
         override val projectRoots: Collection<String>
             get() = data.projectRoots
 

idea/idea-gradle/src/org/jetbrains/kotlin/idea/scripting/gradle/roots/GradleBuildRootsManager.kt

@@ -202,7 +202,7 @@ class GradleBuildRootsManager(val project: Project) : ScriptingSupport() {
         val mergedData = if (build.failed && root is GradleBuildRoot.Imported) merge(root.data, newData) else newData
 
         val newSupport = tryCreateImportedRoot(build.workingDir) { mergedData } ?: return
-        GradleBuildRootDataSerializer.write(newSupport.dir, mergedData)
+        GradleBuildRootDataSerializer.write(newSupport.dir ?: return, mergedData)
 
         add(newSupport)
 
@@ -335,7 +335,7 @@ class GradleBuildRootsManager(val project: Project) : ScriptingSupport() {
             .getExecutionSettings<GradleExecutionSettings>(project, externalProjectPath, GradleConstants.SYSTEM_ID)
             .javaHome?.let { File(it) }
 
-        return GradleBuildRoot.Imported(this, buildRoot, javaHome, data)
+        return GradleBuildRoot.Imported(this, externalProjectPath, javaHome, data)
     }
 
     private fun add(newRoot: GradleBuildRoot.Linked) {

idea/resources/META-INF/gradle.xml.201

@@ -14,7 +14,6 @@
 
     <extensions defaultExtensionNs="org.jetbrains.kotlin.scripting.idea">
         <listener order="first" implementation="org.jetbrains.kotlin.idea.scripting.gradle.GradleScriptListener"/>
-        <listener order="first" implementation="org.jetbrains.kotlin.idea.scripting.gradle.legacy.GradleLegacyScriptListener"/>
 
         <loader order="first" implementation="org.jetbrains.kotlin.idea.scripting.gradle.legacy.GradleLegacyScriptConfigurationLoader"/>