#KT-19924: Fix usability issue with extract declaration from file intention

Fix ExtractDeclaration intention name in tests

Fix ExtractDeclaration intention folder and description to avoid "not found Dir URL" exception

idea/testData/quickfix/modifiers/noAbstractForObject.kt

@@ -1,11 +1,11 @@
 // "Make 'Some' abstract" "false"
 // ACTION: Create test
 // ACTION: Implement members
-// ACTION: Move 'Some' to separate file
+// ACTION: Extract 'Some' from current file
 // ACTION: Rename file to Some.kt
 // ERROR: Object 'Some' is not abstract and does not implement abstract member public abstract fun foo(): Unit defined in T
 interface T {
     fun foo()
 }
 
-object <caret>Some : T
+object <caret>Some : T