RFR: Fix SCCache stats logged on exit

Fri Feb 14 17:45:24 UTC 2025

On Fri, 14 Feb 2025 03:00:16 GMT, Ashutosh Mehra <asmehra at openjdk.org> wrote:

> The count of various SCCEntry kinds is not correctly computed. This patch fixes it.
> This code was introduced as part of i2c2i adapters and was picked up from Andrew Dinn's work on storing stub and blobs. Clearly I messed it up.
> The patch also computes and shows the counts for old entries and new entries separately. Though not useful for now, but in incremental workflow it may be helpful to distinguish between the old and new entries.

Would be nice to keep separate C1 and C2 counts. And add total total count (adapters, stubs, code and all other blobs).

May be separate count for tier1 and tier2 C1

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PR Review: https://git.openjdk.org/leyden/pull/42#pullrequestreview-2618444571
PR Comment: https://git.openjdk.org/leyden/pull/42#issuecomment-2659921038