[compiler-rt] [llvm] [ctxprof] Prepare profile format for flat profiles (PR #129626)

[Snehasish Kumar via llvm-commits]

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@@ -190,8 +190,12 @@ class PGOCtxProfileReader final {
   Error unsupported(const Twine &);
 
   Expected<std::pair<std::optional<uint32_t>, PGOCtxProfContext>>
-  readContext(bool ExpectIndex);
-  bool canReadContext();
+  readProfile(PGOCtxProfileBlockIDs Kind);
+
+  bool canEnterBlockWithID(PGOCtxProfileBlockIDs ID);
+  Error enterBlockWithID(PGOCtxProfileBlockIDs ID);
+
+  Error loadContexts(CtxProfContextualProfiles &);
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snehasish wrote:

nit: name the parameter.

https://github.com/llvm/llvm-project/pull/129626