[llvm] [NFC][StaticDataProfileInfo] Refactor StaticDataProfileInfo::getConstantSectionPrefix and extract analysis based on PGO-counter to be a helper function (PR #162388)

[Snehasish Kumar via llvm-commits]

================
@@ -44,6 +47,20 @@ class StaticDataProfileInfo {
   LLVM_ABI std::optional<uint64_t>
   getConstantProfileCount(const Constant *C) const;
 
+  enum class StaticDataHotness : uint8_t {
+    Cold = 0,
+    LukewarmOrUnknown = 1,
----------------
snehasish wrote:

Prefer unknown as 0 so that any accidentally uninitialized value will default to unknown.

https://github.com/llvm/llvm-project/pull/162388