JetUsageTypeProvider: Eliminate SELECTOR type, replace class with object

idea/testData/findUsages/findClassUsages/kotlinClassPropertyUsages1.results.txt

@@ -1,3 +1,3 @@
-Selector (10: 22) println("${x.a} ${x.b}")
-Selector (10: 29) println("${x.a} ${x.b}")
-Selector (11: 11) x.b = 12
+Value read (10: 22) println("${x.a} ${x.b}")
+Value read (10: 29) println("${x.a} ${x.b}")
+Value write (11: 11) x.b = 12

idea/testData/findUsages/findClassUsages/kotlinClassPropertyUsages2.results.txt

@@ -1,3 +1,3 @@
-Selector (4: 22) println("${a.a} ${a.b}")
-Selector (4: 29) println("${a.a} ${a.b}")
-Selector (5: 11) a.b = 12
+Value read (4: 22) println("${a.a} ${a.b}")
+Value read (4: 29) println("${a.a} ${a.b}")
+Value write (5: 11) a.b = 12

idea/testData/findUsages/findObjectUsages/kotlinPrivateObjectUsages.results.txt

@@ -1,3 +1,3 @@
-Selector (5: 26) println(Server().Foo)
 Value read (10: 33) open fun processRequest() = Foo
 Value read (14: 37) override fun processRequest() = Foo
+Value read (5: 26) println(Server().Foo)

idea/testData/findUsages/findPropertyUsages/kotlinPrivatePropertyUsages.results.txt

@@ -1,3 +1,3 @@
-Selector (5: 26) println(Server().foo)
 Value read (12: 45) override fun processRequest() = "foo" + foo
+Value read (5: 26) println(Server().foo)
 Value read (8: 33) open fun processRequest() = foo

idea/testData/findUsages/findPropertyUsages/kotlinTopLevelPropertyUsages.results.txt

@@ -1,6 +1,6 @@
 Import directive (3: 15) import server.foo
 Receiver (8: 35) println("length: ${server.foo.length()}")
-Selector (7: 33) println("foo = ${server.foo}")
 Unclassified usage (7: 53) System.out.println("foo = " + ServerPackage.getFoo());
 Unclassified usage (8: 55) System.out.println("length: " + ServerPackage.getFoo().length());
 Unclassified usage (9: 23) ServerPackage.setFoo("");
+Value read (7: 33) println("foo = ${server.foo}")