Finding usages (which have references) in text when plaint text occurrences are not searched.

idea/testData/findUsages/kotlin/findClassUsages/classUsedInTextAsRef.0.kt

@@ -0,0 +1,13 @@
+// PSI_ELEMENT: org.jetbrains.jet.lang.psi.JetClass
+// OPTIONS: usages
+package server
+
+open class <caret>Server {
+    class object {
+        val NAME = "Server"
+    }
+
+    open fun work() {
+        println("Server")
+    }
+}

idea/testData/findUsages/kotlin/findClassUsages/classUsedInTextAsRef.1.xml

@@ -0,0 +1 @@
+<foo bar="server.Server"></foo>

idea/testData/findUsages/kotlin/findClassUsages/classUsedInTextAsRef.results.txt

@@ -0,0 +1 @@
+Unclassified usage (1: 18) <foo bar="server.Server"></foo>