Fix highlighting of TODO calls in lambdas

#KT-19915 Fixed

idea/src/org/jetbrains/kotlin/idea/search/ideaExtensions/KotlinTodoSearcher.kt

@@ -53,6 +53,7 @@ class KotlinTodoSearcher : QueryExecutorBase<IndexPatternOccurrence, IndexPatter
 
         file.accept(object : KtTreeVisitorVoid() {
             override fun visitCallExpression(expression: KtCallExpression) {
+                super.visitCallExpression(expression)
                 if (expression.calleeExpression?.text == "TODO") {
                     consumer.process(KotlinTodoOccurrence(file, expression.textRange, pattern))
                 }

idea/testData/search/todo/todoCall.kt

@@ -1,2 +1,7 @@
 fun foo() = TODO("Fix me")
 fun bar() = TODO()
+fun baz() {
+    run {
+        TODO("Fix me in lambda")
+    }
+}

idea/tests/org/jetbrains/kotlin/search/TodoSearchTest.kt

@@ -33,9 +33,10 @@ class TodoSearchTest : KotlinLightCodeInsightFixtureTestCase() {
     fun testTodoCall() {
         val file = myFixture.configureByFile("todoCall.kt")
         val todoItems = PsiTodoSearchHelper.SERVICE.getInstance(myFixture.project).findTodoItems(file)
-        assertEquals(2, todoItems.size)
+        assertEquals(3, todoItems.size)
         verifyTodoItemText(todoItems[0], "TODO(\"Fix me\")")
         verifyTodoItemText(todoItems[1], "TODO()")
+        verifyTodoItemText(todoItems[2], "TODO(\"Fix me in lambda\")")
     }
 
     private fun verifyTodoItemText(todoItem: TodoItem, s: String) {