Scratch: filter out fake gradle modules from combobox

^KT-23523 Fixed

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ui/ScratchTopPanel.kt

@@ -18,18 +18,22 @@ package org.jetbrains.kotlin.idea.scratch.ui
 
 
 import com.intellij.application.options.ModulesComboBox
+import com.intellij.execution.ui.ConfigurationModuleSelector
 import com.intellij.openapi.Disposable
 import com.intellij.openapi.actionSystem.ActionManager
 import com.intellij.openapi.actionSystem.ActionPlaces
 import com.intellij.openapi.actionSystem.DefaultActionGroup
 import com.intellij.openapi.fileEditor.TextEditor
 import com.intellij.openapi.module.Module
+import com.intellij.openapi.module.ModuleManager
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.psi.PsiFile
 import com.intellij.psi.PsiManager
 import com.intellij.ui.components.panels.HorizontalLayout
 import org.jetbrains.annotations.TestOnly
+import org.jetbrains.kotlin.idea.caches.project.productionSourceInfo
+import org.jetbrains.kotlin.idea.caches.project.testSourceInfo
 import org.jetbrains.kotlin.idea.scratch.ScratchFile
 import org.jetbrains.kotlin.idea.scratch.ScratchFileLanguageProvider
 import org.jetbrains.kotlin.idea.scratch.actions.ClearScratchAction
@@ -131,7 +135,9 @@ class ScratchTopPanel private constructor(val scratchFile: ScratchFile) : JPanel
 
     private fun createModuleChooser(project: Project): ModulesComboBox {
         return ModulesComboBox().apply {
-            fillModules(project)
+            setModules(ModuleManager.getInstance(project).modules.filter {
+                it.productionSourceInfo() != null || it.testSourceInfo() != null
+            })
         }
     }
 }