KT-38027 Support Code Vision feature in Kotlin

idea/testData/codeInsight/codeVision/ClassUsages.kt

@@ -0,0 +1,11 @@
+// MODE: usages
+
+<# block [ 5 Usages] #>
+open class SomeClass {}
+class SomeOtherClass : SomeClass {} // <== (1): class extension
+class SomeYetOtherClass : SomeClass { // <== (2): class extension
+<# block [     1 Usage] #>
+    fun acceptsClass(param: SomeClass) {} // <== (3): parameter type
+    fun returnsInterface(): SomeClass {} // <== (4): return type
+    fun main() = acceptsClass(object : SomeClass {}) // <== (5): anonymous class instance
+}