AsyncScope-ify the console helpers
AsyncScope-ify the console helpers

The console helpers are using frontend.waitForFunction in a couple
places which are not currently assigned an AsyncScope automatically.

Change-Id: I5a0ebab798e56627b9ded740334aa818648e3235
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2374214
Reviewed-by: Peter Marshall <6d0eecbeb7fb9d172f49b4b32481d2466fd89429@chromium.org>
Commit-Queue: Philip Pfaffe <639a645feae3653b7aaefa0387217d375f2f82ff@chromium.org>

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