Run/Debug editor gutter drop down does not work in Kotlin files (KT-8720)

#KT-8720 Fixed

idea/idea-analysis/src/org/jetbrains/kotlin/idea/configuration/MainFunctionGutterVisitor.kt

@@ -1,43 +0,0 @@
-/*
- * Copyright 2010-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.idea.configuration
-
-import com.intellij.lang.annotation.AnnotationHolder
-import com.intellij.openapi.editor.markup.GutterIconRenderer
-import com.intellij.psi.PsiElement
-import org.jetbrains.kotlin.idea.JetIcons
-import org.jetbrains.kotlin.idea.MainFunctionDetector
-import org.jetbrains.kotlin.psi.JetNamedFunction
-import org.jetbrains.kotlin.psi.JetVisitorVoid
-import org.jetbrains.kotlin.resolve.BindingContext
-import javax.swing.Icon
-
-class MainFunctionGutterVisitor(val holder: AnnotationHolder, val bindingContext: BindingContext) : JetVisitorVoid() {
-    override fun visitNamedFunction(function: JetNamedFunction) {
-        if (MainFunctionDetector(bindingContext).isMain(function)) {
-            function.nameIdentifier?.let { nameIdentifier ->
-                holder.createInfoAnnotation(nameIdentifier, "Run configuration from here").gutterIconRenderer = MainGutterIconRenderer(nameIdentifier)
-            }
-        }
-    }
-}
-
-class MainGutterIconRenderer(val nameIdentifier: PsiElement) : GutterIconRenderer() {
-    override fun getIcon(): Icon = JetIcons.LAUNCH
-    override fun hashCode(): Int = nameIdentifier.hashCode()
-    override fun equals(other: Any?): Boolean = other is MainGutterIconRenderer && other.nameIdentifier == nameIdentifier
-}

idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/JetPsiChecker.kt

@@ -39,8 +39,6 @@ import org.jetbrains.kotlin.diagnostics.Severity
 import org.jetbrains.kotlin.diagnostics.rendering.DefaultErrorMessages
 import org.jetbrains.kotlin.idea.actions.internal.KotlinInternalMode
 import org.jetbrains.kotlin.idea.caches.resolve.analyzeFullyAndGetResult
-import org.jetbrains.kotlin.idea.configuration.MainFunctionGutterVisitor
-import org.jetbrains.kotlin.idea.kdoc.KDocHighlightingVisitor
 import org.jetbrains.kotlin.idea.quickfix.QuickFixes
 import org.jetbrains.kotlin.idea.references.mainReference
 import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
@@ -240,9 +238,8 @@ public open class JetPsiChecker : Annotator, HighlightRangeExtension {
                 PropertiesHighlightingVisitor(holder, bindingContext),
                 FunctionsHighlightingVisitor(holder, bindingContext),
                 VariablesHighlightingVisitor(holder, bindingContext),
-                TypeKindHighlightingVisitor(holder, bindingContext),
+                TypeKindHighlightingVisitor(holder, bindingContext)
                 //DeprecatedAnnotationVisitor(holder, bindingContext)
-                MainFunctionGutterVisitor(holder, bindingContext)
         )
 
         public fun createQuickfixes(diagnostic: Diagnostic): Collection<IntentionAction> {

idea/src/META-INF/plugin.xml

@@ -405,6 +405,7 @@
     <runConfigurationProducer implementation="org.jetbrains.kotlin.idea.run.KotlinRunConfigurationProducer"/>
     <codeInsight.lineMarkerProvider language="jet" implementationClass="org.jetbrains.kotlin.idea.highlighter.markers.KotlinLineMarkerProvider"/>
     <codeInsight.lineMarkerProvider language="jet" implementationClass="org.jetbrains.kotlin.idea.highlighter.KotlinRecursiveCallLineMarkerProvider"/>
+    <codeInsight.lineMarkerProvider language="jet" implementationClass="org.jetbrains.kotlin.idea.highlighter.KotlinRunLineMarkerProvider"/>
     <iconProvider implementation="org.jetbrains.kotlin.idea.JetIconProvider"/>
     <itemPresentationProvider implementationClass="org.jetbrains.kotlin.idea.presentation.JetFunctionPresenter"
                               forClass="org.jetbrains.kotlin.psi.JetFunction"/>

idea/src/org/jetbrains/kotlin/idea/highlighter/KotlinRunLineMarkerProvider.kt

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010-2015 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.idea.highlighter
+
+import com.intellij.codeInsight.daemon.LineMarkerInfo
+import com.intellij.codeInsight.daemon.LineMarkerProvider
+import com.intellij.execution.lineMarker.RunLineMarkerInfo
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.descriptors.FunctionDescriptor
+import org.jetbrains.kotlin.idea.JetIcons
+import org.jetbrains.kotlin.idea.MainFunctionDetector
+import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptor
+import org.jetbrains.kotlin.psi.JetNamedFunction
+
+
+public class KotlinRunLineMarkerProvider : LineMarkerProvider {
+    override fun getLineMarkerInfo(e: PsiElement): LineMarkerInfo<PsiElement>? {
+        val function = e.parent as? JetNamedFunction
+        if (function == null) return null
+
+        if (function.nameIdentifier != e) return null
+
+        val detector = MainFunctionDetector { function ->
+            function.resolveToDescriptor() as FunctionDescriptor
+        }
+
+        if (detector.isMain(function)) {
+            return RunLineMarkerInfo(function, JetIcons.LAUNCH, null)
+        }
+
+        return null
+
+    }
+
+    override fun collectSlowLineMarkers(elements: List<PsiElement>, result: MutableCollection<LineMarkerInfo<PsiElement>>) {
+    }
+}