[PATCH] D57659: [Sema] SequenceChecker: Add some comments + related small NFCs in preparation of the following patches

[Bruno Ricci via Phabricator via cfe-commits]

riccibruno marked an inline comment as done.
riccibruno added inline comments.


================
Comment at: lib/Sema/SemaChecking.cpp:11748
+    /// The expressions corresponding to each usage kind.
+    Expr *UsageExprs[UK_Count]{};
+
----------------
aaron.ballman wrote:
> You can drop the `{}` here and below.
I don't think I can (although I can drop it for the array of `SequenceTree::Seq`). I want to value-initialize each expression in this array so that they are all null.


Repository:
  rC Clang

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  https://reviews.llvm.org/D57659/new/

https://reviews.llvm.org/D57659