[llvm] [IR2Vec] Exposing Embedding as an data type wrapped around std::vector<double> (PR #143197)

[Aiden Grossman via llvm-commits]

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@@ -53,16 +53,72 @@ class raw_ostream;
 enum class IR2VecKind { Symbolic };
 
 namespace ir2vec {
-using Embedding = std::vector<double>;
+/// Embedding is a datavtype that wraps std::vector<double>. It provides
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boomanaiden154 wrote:

Typo: `s/datavtype/datatype`

https://github.com/llvm/llvm-project/pull/143197