Inline function: add extra tests taken from intellij-community

idea/testData/refactoring/inline/function/fromIntellij/NotAStatement.kt

@@ -0,0 +1,22 @@
+class AAA {
+    fun fff(myProject: Project) {
+        ensureFilesWritable(myProject, *Array(1) { "2" })
+    }
+
+    private fun ensure<caret>FilesWritable(project: Project, vararg strings: String): Boolean {
+        return !ensureFilesWritable(strings).hasReadonlyFiles()
+    }
+
+    private fun ensureFilesWritable(strings: Array<out String>): Status {
+        return Status(strings)
+    }
+
+    inner class Status(strings: Array<out String>) {
+
+        fun hasReadonlyFiles(): Boolean {
+            return true
+        }
+    }
+
+    inner class Project
+}