Quick fix for deprecated async syntax

idea/testData/inspections/cleanup/cleanup.kt

@@ -76,3 +76,23 @@ val x = C() willBeInfix 1
 fun infixTest() {
     arrayListOf(1, 2, 3) map { it }
 }
+
+fun async(f: () -> Unit) {}
+infix fun Any.async(f: () -> Unit) {}
+
+fun test(foo: Any) {
+    async {  }
+    async /**/ {  }
+    foo async {  }
+
+    async() { }
+
+    async({ })
+    foo async ({ })
+
+    foo async fun () {}
+    foo async (fun () {})
+
+    async (fun () {})
+}
+

idea/testData/inspections/cleanup/cleanup.kt.after

@@ -75,3 +75,23 @@ val x = C() willBeInfix 1
 fun infixTest() {
     arrayListOf(1, 2, 3).map { it }
 }
+
+fun async(f: () -> Unit) {}
+infix fun Any.async(f: () -> Unit) {}
+
+fun test(foo: Any) {
+    async() {  }
+    async() /**/ {  }
+    foo async ({  })
+
+    async() { }
+
+    async({ })
+    foo async ({ })
+
+    foo async (fun () {})
+    foo async (fun () {})
+
+    async (fun () {})
+}
+