Ignore handleReturn calls if functions is not operator

compiler/frontend/src/org/jetbrains/kotlin/coroutines/coroutineUtil.kt

@@ -83,7 +83,7 @@ fun FakeCallResolver.resolveCoroutineHandleResultCallIfNeeded(
             OperatorNameConventions.COROUTINE_HANDLE_RESULT, callElement, callElement, FakeCallKind.OTHER,
             listOf(firstArgument, continuation))
 
-    if (resolutionResults.isSuccess) {
+    if (resolutionResults.isSuccess && resolutionResults.resultingDescriptor.isOperator) {
         context.trace.record(BindingContext.RETURN_HANDLE_RESULT_RESOLVED_CALL, callElement, resolutionResults.resultingCall)
     }
 }

compiler/testData/codegen/java8/box/async.kt

@@ -71,7 +71,7 @@ class FutureController<T> {
         }
     }
 
-    fun handleResult(value: T, c: Continuation<Nothing>) {
+    operator fun handleResult(value: T, c: Continuation<Nothing>) {
         future.complete(value)
     }
 

compiler/testData/codegen/java8/box/asyncException.kt

@@ -51,7 +51,7 @@ class FutureController<T> {
         }
     }
 
-    fun handleResult(value: T, c: Continuation<Nothing>) {
+    operator fun handleResult(value: T, c: Continuation<Nothing>) {
         future.complete(value)
     }