Smart completion: checking constructor's visibility + true and false for Boolean

#KT-4916 Fixed

idea/testData/completion/handlers/smart/True.kt

@@ -0,0 +1,3 @@
+fun foo(): Boolean = <caret>
+
+// ELEMENT: true

idea/testData/completion/handlers/smart/True.kt.after

@@ -0,0 +1,3 @@
+fun foo(): Boolean = true<caret>
+
+// ELEMENT: true

idea/testData/completion/smart/BooleanExpected.kt

@@ -0,0 +1,5 @@
+fun foo(): Boolean = <caret>
+
+// EXIST: true
+// EXIST: false
+// ABSENT: Boolean

idea/testData/completion/smart/ConstructorForJavaClass.kt

@@ -0,0 +1,5 @@
+import java.util.Date
+
+var a : Date = <caret>
+
+// EXIST: { lookupString:"Date", itemText:"Date()" }

idea/testData/completion/smart/ConstructorForJavaClass.kt.todo

@@ -1,5 +0,0 @@
-import java.util.Date
-
-var a : Date = <caret>
-
-// EXIST: Date@Date()

idea/testData/completion/smart/InaccessibleConstructor.kt

@@ -0,0 +1,5 @@
+class Foo protected()
+
+var a : Foo = <caret>
+
+// ABSENT: Foo

idea/testData/completion/smart/PrivateConstructorForAbstract.kt

@@ -0,0 +1,6 @@
+abstract class Foo private()
+
+var a : Foo = <caret>
+
+// ABSENT: Foo
+// ABSENT: object

idea/testData/completion/smart/ProtectedConstructorForAbstract.kt

@@ -0,0 +1,6 @@
+abstract class Foo protected()
+
+var a : Foo = <caret>
+
+// ABSENT: Foo
+// EXIST: { lookupString:"object", itemText:"object: Foo(){...}" }