Jim Graham 076895a3e6 Add option to save Impeller failure images in rendertests (flutter/engine#47142) ...

The rendering tests currently always save the impeller failure images into a temporary directory in /tmp which is out of the way and might accumulate over time.

The images are now only saved when `--save-impeller-failures` is specified on the command line and they are now saved into a local sub-directory with multiple runs saving into new sub-directories to keep the failure images from getting confused with each other over time. The new image directories are named `./impeller_failure_images/NNNN/*.png`

2023-10-20 18:27:19 +00:00

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src/flutter

Add option to save Impeller failure images in rendertests (flutter/engine#47142)

2023-10-20 18:27:19 +00:00