Add JvmSynthetic annotation

compiler/testData/codegen/bytecodeListing/annotations/JvmSynthetic.kt

@@ -0,0 +1,17 @@
+class Example {
+    @JvmSynthetic
+    val prop: String = "ABC"
+
+    var prop2 = 5
+        @JvmSynthetic public get
+        @JvmSynthetic public set
+
+    @field:JvmSynthetic
+    val useSite = 0
+
+    @get:JvmSynthetic @set:JvmSynthetic
+    var useSite2 = 0
+
+    @JvmSynthetic
+    fun job() {}
+}