KT-38027 Support Code Vision feature in Kotlin

idea/testData/codeInsight/codeVision/InterfaceMethodUsages.kt

@@ -0,0 +1,17 @@
+// MODE: usages
+
+<# block [ 1 Usage] #>
+interface SomeInterface {
+<# block [     3 Usages] #>
+    fun someFun(): String
+    fun someOtherFun() = someFun() // <== (1): delegation from another interface method
+    val someProperty = someFun() // <== (2): property initializer
+}
+
+fun main() {
+    val instance = object: SomeInterface {
+<# block [         1 Usage] #>
+        override fun someFun(): String {} // <== (): used below
+    }
+    instance.someFun() <== (3): call on an instance
+}