[clang] [clang][serialization] Blobify IMPORTS strings and signatures (PR #116095)

[Ben Langmuir via cfe-commits]

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@@ -350,9 +350,8 @@ enum ControlRecordTypes {
   /// and information about the compiler used to build this AST file.
   METADATA = 1,
 
-  /// Record code for the list of other AST files imported by
-  /// this AST file.
-  IMPORTS,
+  /// Record code for other AST file imported by this AST file.
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benlangmuir wrote:

nit: "another"

https://github.com/llvm/llvm-project/pull/116095