Data flow to/from here: supported expected/actual declarations and extension receivers

idea/testData/slicer/outflow/wrongThis.kt

@@ -0,0 +1,19 @@
+// FLOW: OUT
+
+class C {
+    fun String.extensionFun(): Any {
+        with("A") {
+            println(this.length)
+            println(this@extensionFun.length)
+        }
+        return this@C
+    }
+
+    fun foo() {
+        val x = <caret>"".extensionFun()
+    }
+}
+
+inline fun <T, R> with(receiver: T, block: T.() -> R): R {
+    return receiver.block()
+}