[tests] Fix bad merge

Two changes landed that touched this test and they didn't merge cleanly.

Change-Id: Ie199dcb30b63627164ce2213fe4d61e65d664371
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426285
Reviewed-by: Bob Nystrom <[email protected]>
Commit-Queue: Nicholas Shahan <[email protected]>

Author: nshahan

tests/dartdevc/no_such_method_errors_test.dart

@@ -94,8 +94,8 @@ void main() {
         () => d(),
         (error) => error.toString().contains(
           "NoSuchMethodError: 'call'\n"
-          "Dynamic call with missing positional arguments. "
-          "Expected: 1 Actual: 0\n"
+          "Dynamic call failed.\n"
+          "Missing positional arguments. Expected: 1 Actual: 0\n"
           "Receiver: Instance of 'B'\n"
           "Arguments: []",
         ),