More informative presentation of synthetic properties in completion

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/LookupElementFactory.kt

@@ -34,6 +34,7 @@ import org.jetbrains.kotlin.psi.psiUtil.parents
 import org.jetbrains.kotlin.renderer.DescriptorRenderer
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
 import org.jetbrains.kotlin.resolve.DescriptorUtils
+import org.jetbrains.kotlin.synthetic.SyntheticJavaBeansPropertyDescriptor
 import org.jetbrains.kotlin.types.JetType
 import org.jetbrains.kotlin.types.TypeUtils
 
@@ -216,27 +217,36 @@ public class LookupElementFactory(
         }
 
         if (descriptor is CallableDescriptor) {
-            if (descriptor.getExtensionReceiverParameter() != null) {
-                val originalReceiver = descriptor.getOriginal().getExtensionReceiverParameter()!!
-                val receiverPresentation = DescriptorRenderer.SHORT_NAMES_IN_TYPES.renderType(originalReceiver.getType())
-                element = element.appendTailText(" for $receiverPresentation", true)
-
-                val container = descriptor.getContainingDeclaration()
-                val containerPresentation = if (container is ClassDescriptor)
-                    DescriptorUtils.getFqNameFromTopLevelClass(container).toString()
-                else if (container is PackageFragmentDescriptor)
-                    container.fqName.toString()
-                else
-                    null
-                if (containerPresentation != null) {
-                    element = element.appendTailText(" in $containerPresentation", true)
+            when {
+                descriptor is SyntheticJavaBeansPropertyDescriptor -> {
+                    var from = descriptor.getMethod.getName().asString() + "()"
+                    descriptor.setMethod?.let { from += "/" + it.getName().asString() + "()" }
+                    element = element.appendTailText(" (from $from)", true)
                 }
-            }
-            else {
-                val container = descriptor.getContainingDeclaration()
-                if (container is PackageFragmentDescriptor) { // we show container only for global functions and properties
-                    //TODO: it would be probably better to show it also for static declarations which are not from the current class (imported)
-                    element = element.appendTailText(" (${container.fqName})", true)
+
+                descriptor.getExtensionReceiverParameter() != null -> {
+                    val originalReceiver = descriptor.getOriginal().getExtensionReceiverParameter()!!
+                    val receiverPresentation = DescriptorRenderer.SHORT_NAMES_IN_TYPES.renderType(originalReceiver.getType())
+                    element = element.appendTailText(" for $receiverPresentation", true)
+
+                    val container = descriptor.getContainingDeclaration()
+                    val containerPresentation = if (container is ClassDescriptor)
+                        DescriptorUtils.getFqNameFromTopLevelClass(container).toString()
+                    else if (container is PackageFragmentDescriptor)
+                        container.fqName.toString()
+                    else
+                        null
+                    if (containerPresentation != null) {
+                        element = element.appendTailText(" in $containerPresentation", true)
+                    }
+                }
+
+                else -> {
+                    val container = descriptor.getContainingDeclaration()
+                    if (container is PackageFragmentDescriptor) { // we show container only for global functions and properties
+                        //TODO: it would be probably better to show it also for static declarations which are not from the current class (imported)
+                        element = element.appendTailText(" (${container.fqName})", true)
+                    }
                 }
             }
         }

idea/idea-completion/testData/basic/common/extensions/ShowGetSetOnSecondCompletion.kt

@@ -3,6 +3,6 @@ fun foo(thread: Thread) {
 }
 
 // INVOCATION_COUNT: 2
-// EXIST_JAVA_ONLY: { lookupString: "priority", itemText: "priority", tailText: " for Thread", typeText: "Int" }
+// EXIST_JAVA_ONLY: { lookupString: "priority", itemText: "priority", tailText: " (from getPriority()/setPriority())", typeText: "Int" }
 // EXIST_JAVA_ONLY: getPriority
 // EXIST_JAVA_ONLY: setPriority

idea/idea-completion/testData/basic/common/extensions/SyntheticExtensions1.kt

@@ -4,5 +4,5 @@ fun foo(file: File) {
     file.<caret>
 }
 
-// EXIST_JAVA_ONLY: { lookupString: "absolutePath", itemText: "absolutePath", tailText: " for File", typeText: "String!" }
+// EXIST_JAVA_ONLY: { lookupString: "absolutePath", itemText: "absolutePath", tailText: " (from getAbsolutePath())", typeText: "String!" }
 // ABSENT: getAbsolutePath

idea/idea-completion/testData/basic/common/extensions/SyntheticExtensions2.kt

@@ -4,9 +4,9 @@ fun Thread.foo(urlConnection: java.net.URLConnection) {
     }
 }
 
-// EXIST_JAVA_ONLY: { lookupString: "priority", itemText: "priority", tailText: " for Thread", typeText: "Int" }
-// EXIST_JAVA_ONLY: { lookupString: "daemon", itemText: "daemon", tailText: " for Thread", typeText: "Boolean" }
-// EXIST_JAVA_ONLY: { lookupString: "URL", itemText: "URL", tailText: " for URLConnection", typeText: "URL!" }
+// EXIST_JAVA_ONLY: { lookupString: "priority", itemText: "priority", tailText: " (from getPriority()/setPriority())", typeText: "Int" }
+// EXIST_JAVA_ONLY: { lookupString: "daemon", itemText: "daemon", tailText: " (from isDaemon()/setDaemon())", typeText: "Boolean" }
+// EXIST_JAVA_ONLY: { lookupString: "URL", itemText: "URL", tailText: " (from getURL())", typeText: "URL!" }
 // ABSENT: getPriority
 // ABSENT: setPriority
 // ABSENT: isDaemon

idea/idea-completion/testData/basic/common/extensions/SyntheticExtensionsSafeCall.kt

@@ -4,5 +4,5 @@ fun foo(file: File?) {
     file?.<caret>
 }
 
-// EXIST_JAVA_ONLY: { lookupString: "absolutePath", itemText: "absolutePath", tailText: " for File", typeText: "String!" }
+// EXIST_JAVA_ONLY: { lookupString: "absolutePath", itemText: "absolutePath", tailText: " (from getAbsolutePath())", typeText: "String!" }
 // ABSENT: getAbsolutePath

idea/idea-completion/testData/basic/multifile/SyntheticExtensionForGenericClass/SyntheticExtensionForGenericClass.kt

@@ -2,4 +2,4 @@ fun foo(javaClass: JavaClass<String>) {
     javaClass.<caret>
 }
 
-// EXIST: { lookupString: "something", itemText: "something", tailText: " for JavaClass<String>", typeText: "String!" }
+// EXIST: { lookupString: "something", itemText: "something", tailText: " (from getSomething()/setSomething())", typeText: "String!" }