JVM_IR: Minor. Add test

compiler/testData/codegen/box/coroutines/featureIntersection/interfaceMethodWithBodyGeneric.kt

@@ -0,0 +1,27 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+// WITH_RUNTIME
+// WITH_COROUTINES
+
+import helpers.*
+import kotlin.coroutines.*
+import kotlin.coroutines.intrinsics.*
+
+fun <T> builder(value: T, c: suspend T.() -> Unit) {
+    c.startCoroutine(value, EmptyContinuation)
+}
+
+interface A<T> {
+    val value: T
+    var result: T
+
+    fun test(): T {
+        builder(value) { result = this }
+        return result
+    }
+}
+
+fun box(): String =
+    object : A<String> {
+        override val value = "OK"
+        override var result = "Fail"
+    }.test()