No true/false for if-condition too

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

@@ -147,6 +147,8 @@ class ReturnValueAdditionalData(val callable: CallableDescriptor) : ExpectedInfo
 
 class WhenEntryAdditionalData(val whenWithSubject: Boolean) : ExpectedInfo.AdditionalData
 
+object IfConditionAdditionalData : ExpectedInfo.AdditionalData
+
 class ExpectedInfos(
         val bindingContext: BindingContext,
         val resolutionFacade: ResolutionFacade,
@@ -423,7 +425,7 @@ class ExpectedInfos(
     private fun calculateForIf(expressionWithType: JetExpression): Collection<ExpectedInfo>? {
         val ifExpression = (expressionWithType.getParent() as? JetContainerNode)?.getParent() as? JetIfExpression ?: return null
         return when (expressionWithType) {
-            ifExpression.getCondition() -> listOf(ExpectedInfo(resolutionFacade.moduleDescriptor.builtIns.booleanType, null, Tail.RPARENTH))
+            ifExpression.getCondition() -> listOf(ExpectedInfo(resolutionFacade.moduleDescriptor.builtIns.booleanType, null, Tail.RPARENTH, additionalData = IfConditionAdditionalData))
 
             ifExpression.getThen() -> calculate(ifExpression).map { ExpectedInfo(it.filter, it.expectedName, Tail.ELSE) }
 

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

@@ -55,8 +55,13 @@ object KeywordValues {
     ) {
         if (callTypeAndReceiver is CallTypeAndReceiver.DEFAULT) {
             val booleanInfoMatcher = matcher@ { info: ExpectedInfo ->
-                // no sense in true or false as when entry for when with no subject
-                if (info.additionalData is WhenEntryAdditionalData && !info.additionalData.whenWithSubject) {
+                // no sense in true or false as if-condition or when entry for when with no subject
+                val skipTrueFalse = when (info.additionalData) {
+                    is IfConditionAdditionalData -> true
+                    is WhenEntryAdditionalData -> !info.additionalData.whenWithSubject
+                    else -> false
+                }
+                if (skipTrueFalse) {
                     return@matcher ExpectedInfoMatch.noMatch
                 }
 

idea/idea-completion/testData/smart/IfCondition.kt

@@ -4,3 +4,5 @@ fun bar(b: Boolean, c: Char){
 
 // EXIST: b
 // ABSENT: c
+// ABSENT: true
+// ABSENT: false