This changes the bytecode decoder such that --print-bytecode will print

    ... CallRuntime [GeneratorGetResumeMode] ...
    ... InvokeIntrinsic [CreateIterResultObject] ...

instead of

    ... CallRuntime [762] ...
    ... InvokeIntrinsic [2] ...

The printing of CallJSRuntime remains unchanged.

R=gsathya@chromium.org, rmcilroy@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2712943002
Cr-Commit-Position: refs/heads/master@{#43391}