[llvm] [BOLT][NFC] Make YamlProfileToFunction a DenseMap (PR #108712)

[Amir Ayupov via llvm-commits]

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@@ -105,7 +105,7 @@ class YAMLProfileReader : public ProfileReaderBase {
   yaml::bolt::BinaryProfile YamlBP;
 
   /// Map a function ID from a YAML profile to a BinaryFunction object.
-  std::vector<BinaryFunction *> YamlProfileToFunction;
+  DenseMap<uint32_t, BinaryFunction *> YamlProfileToFunction;
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aaupov wrote:

But the YamlBF.Id is uint32, so I decided to match it: https://github.com/llvm/llvm-project/blob/6b21cf8ccad84e2670e458d8bdaccbd0ae37b46b/bolt/include/bolt/Profile/ProfileYAMLMapping.h#L200-L203

https://github.com/llvm/llvm-project/pull/108712