This unblocks https://crrev.com/c/3099011 by speeding up the case for
the DebugPropertyIterator where only non-indexed properties (for large
arrays or typed arrays) are requested. Previously we'd walk through all
properties - including all indexed properties - and only filter out the
indexed properties in the end in `ValueMirror::getProperties()`.

Bug: chromium:1199701, chromium:1162229
Change-Id: I2555e3129fef29da347314eee400ea97ebf5e5b7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3114135
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76796}