VM: Fix NoSuchMethod invocation interrupted by shutdown.
VM: Fix NoSuchMethod invocation interrupted by shutdown.

When shut down while processing a NoSuchMethod invocation in the runtime,
we forgot to check for an error result after allocating the invocation mirror.

BUG=#26588
R=zra@google.com

Review URL: https://codereview.chromium.org/2380583003 .

dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk