Amir Ayupov e039d16ee5
[BOLT][NFC] Disambiguate sample as basic sample (#139350)
Sample is a general term covering both basic (IP) and branch (LBR)
profiles. Find and replace ambiguous uses of sample in a basic sample
sense.

Rename `RawBranchCount` into `RawSampleCount` reflecting its use for
both kinds of profile.

Rename `PF_LBR` profile type as `PF_BRANCH` reflecting non-LBR based
branch profiles (non-brstack SPE, synthesized brstack ETM/PT).

Follow-up to #137644.

Test Plan: NFC
2025-05-12 17:15:16 -07:00
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