Keyword completion: add "class/interface/object + filename" completion for top level (KT-28394)

#KT-28394 Fixed

idea/idea-completion/testData/keywords/AfterClasses.kt

@@ -10,6 +10,9 @@ class B {
     }
 }
 
+class AfterClasses {
+}
+
 <caret>
 
 // EXIST:  abstract

idea/idea-completion/testData/keywords/AfterClasses_LangLevel10.kt

@@ -14,24 +14,31 @@ class B {
 
 // EXIST:  abstract
 // EXIST:  class
+// EXIST:  class AfterClasses_LangLevel10
 // EXIST:  enum class
+// EXIST:  enum class AfterClasses_LangLevel10
 // EXIST:  final
 // EXIST:  fun
 // EXIST:  internal
 // EXIST:  object
+// EXIST:  object AfterClasses_LangLevel10
 // EXIST:  open
 // EXIST:  private
 // EXIST:  public
 // EXIST:  interface
+// EXIST:  interface AfterClasses_LangLevel10
 // EXIST:  val
 // EXIST:  var
 // EXIST:  operator
 // EXIST:  infix
 // EXIST:  sealed class
+// EXIST:  sealed class AfterClasses_LangLevel10
 // EXIST:  data class
+// EXIST:  data class AfterClasses_LangLevel10
 // EXIST:  inline
 // EXIST:  tailrec
 // EXIST:  external
 // EXIST:  annotation class
+// EXIST:  annotation class AfterClasses_LangLevel10
 // EXIST:  const val
 // NOTHING_ELSE

idea/idea-completion/testData/keywords/AfterClasses_LangLevel11.kt

@@ -14,25 +14,32 @@ class B {
 
 // EXIST:  abstract
 // EXIST:  class
+// EXIST:  class AfterClasses_LangLevel11
 // EXIST:  enum class
+// EXIST:  enum class AfterClasses_LangLevel11
 // EXIST:  final
 // EXIST:  fun
 // EXIST:  internal
 // EXIST:  object
+// EXIST:  object AfterClasses_LangLevel11
 // EXIST:  open
 // EXIST:  private
 // EXIST:  public
 // EXIST:  interface
+// EXIST:  interface AfterClasses_LangLevel11
 // EXIST:  val
 // EXIST:  var
 // EXIST:  operator
 // EXIST:  infix
 // EXIST:  sealed class
+// EXIST:  sealed class AfterClasses_LangLevel11
 // EXIST:  data class
+// EXIST:  data class AfterClasses_LangLevel11
 // EXIST:  inline
 // EXIST:  tailrec
 // EXIST:  external
 // EXIST:  annotation class
+// EXIST:  annotation class AfterClasses_LangLevel11
 // EXIST:  const val
 // EXIST:  suspend
 // EXIST:  typealias

idea/idea-completion/testData/keywords/GlobalPropertyAccessors.kt

@@ -12,7 +12,9 @@ var a : Int
 // EXIST:  abstract
 // EXIST: by
 // EXIST:  class
+// EXIST:  class GlobalPropertyAccessors
 // EXIST:  enum class
+// EXIST:  enum class GlobalPropertyAccessors
 // EXIST:  final
 // EXIST:  fun
 // EXIST: { itemText: "get", tailText: null }
@@ -20,6 +22,7 @@ var a : Int
 // EXIST: { itemText: "get", tailText: "() {...}" }
 // EXIST:  internal
 // EXIST:  object
+// EXIST:  object GlobalPropertyAccessors
 // EXIST:  open
 // EXIST:  private
 // EXIST:  public
@@ -27,16 +30,20 @@ var a : Int
 // EXIST: { itemText: "set", tailText: "(value) = ..." }
 // EXIST: { itemText: "set", tailText: "(value) {...}" }
 // EXIST:  interface
+// EXIST:  interface GlobalPropertyAccessors
 // EXIST:  val
 // EXIST:  var
 // EXIST:  operator
 // EXIST:  infix
 // EXIST:  sealed class
+// EXIST:  sealed class GlobalPropertyAccessors
 // EXIST:  data class
+// EXIST:  data class GlobalPropertyAccessors
 // EXIST:  inline
 // EXIST:  tailrec
 // EXIST:  external
 // EXIST:  annotation class
+// EXIST:  annotation class GlobalPropertyAccessors
 // EXIST:  const val
 // EXIST:  suspend
 // EXIST:  typealias

idea/idea-completion/testData/keywords/InTopScopeAfterPackage.kt

@@ -4,26 +4,33 @@ package Test
 
 // EXIST:  abstract
 // EXIST:  class
+// EXIST:  class InTopScopeAfterPackage
 // EXIST:  enum class
+// EXIST:  enum class InTopScopeAfterPackage
 // EXIST:  final
 // EXIST:  fun
 // EXIST:  import
 // EXIST:  internal
 // EXIST:  object
+// EXIST:  object InTopScopeAfterPackage
 // EXIST:  open
 // EXIST:  private
 // EXIST:  public
 // EXIST:  interface
+// EXIST:  interface InTopScopeAfterPackage
 // EXIST:  val
 // EXIST:  var
 // EXIST:  operator
 // EXIST:  infix
 // EXIST:  sealed class
+// EXIST:  sealed class InTopScopeAfterPackage
 // EXIST:  data class
+// EXIST:  data class InTopScopeAfterPackage
 // EXIST:  inline
 // EXIST:  tailrec
 // EXIST:  external
 // EXIST:  annotation class
+// EXIST:  annotation class InTopScopeAfterPackage
 // EXIST:  const val
 // EXIST:  suspend
 // EXIST:  typealias

idea/idea-completion/testData/keywords/TopScope.kt

@@ -2,27 +2,34 @@
 
 // EXIST:  abstract
 // EXIST:  class
+// EXIST:  class TopScope
 // EXIST:  enum class
+// EXIST:  enum class TopScope
 // EXIST:  final
 // EXIST:  fun
 // EXIST:  import
 // EXIST:  internal
 // EXIST:  object
+// EXIST:  object TopScope
 // EXIST:  open
 // EXIST:  package
 // EXIST:  private
 // EXIST:  public
 // EXIST:  interface
+// EXIST:  interface TopScope
 // EXIST:  val
 // EXIST:  var
 // EXIST:  operator
 // EXIST:  infix
 // EXIST:  sealed class
+// EXIST:  sealed class TopScope
 // EXIST:  data class
+// EXIST:  data class TopScope
 // EXIST:  inline
 // EXIST:  tailrec
 // EXIST:  external
 // EXIST:  annotation class
+// EXIST:  annotation class TopScope
 // EXIST:  const val
 // EXIST:  suspend
 // EXIST:  typealias

idea/idea-completion/testData/keywords/TopScope3-.kt

@@ -0,0 +1,32 @@
+<caret>
+
+// EXIST:  abstract
+// EXIST:  class
+// EXIST:  enum class
+// EXIST:  final
+// EXIST:  fun
+// EXIST:  import
+// EXIST:  internal
+// EXIST:  object
+// EXIST:  open
+// EXIST:  package
+// EXIST:  private
+// EXIST:  public
+// EXIST:  interface
+// EXIST:  val
+// EXIST:  var
+// EXIST:  operator
+// EXIST:  infix
+// EXIST:  sealed class
+// EXIST:  data class
+// EXIST:  inline
+// EXIST:  tailrec
+// EXIST:  external
+// EXIST:  annotation class
+// EXIST:  const val
+// EXIST:  suspend
+// EXIST:  typealias
+// EXIST:  expect
+// EXIST:  actual
+// EXIST:  lateinit var
+// NOTHING_ELSE

idea/idea-completion/testData/keywords/topScope2.kt

@@ -0,0 +1,32 @@
+<caret>
+
+// EXIST:  abstract
+// EXIST:  class
+// EXIST:  enum class
+// EXIST:  final
+// EXIST:  fun
+// EXIST:  import
+// EXIST:  internal
+// EXIST:  object
+// EXIST:  open
+// EXIST:  package
+// EXIST:  private
+// EXIST:  public
+// EXIST:  interface
+// EXIST:  val
+// EXIST:  var
+// EXIST:  operator
+// EXIST:  infix
+// EXIST:  sealed class
+// EXIST:  data class
+// EXIST:  inline
+// EXIST:  tailrec
+// EXIST:  external
+// EXIST:  annotation class
+// EXIST:  const val
+// EXIST:  suspend
+// EXIST:  typealias
+// EXIST:  expect
+// EXIST:  actual
+// EXIST:  lateinit var
+// NOTHING_ELSE

idea/idea-completion/testData/weighers/basic/TopLevelKeywordWithClassName.kt

@@ -0,0 +1,4 @@
+cla<caret>
+
+// ORDER: class
+// ORDER: class TopLevelKeyword