[llvm] [ThinLTO]Record import type (declaration or definition) in GlobalValueSummary::GVFlags (PR #87597)

[Mingming Liu via llvm-commits]

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@@ -737,6 +737,7 @@ lltok::Kind LLLexer::LexIdentifier() {
   KEYWORD(live);
   KEYWORD(dsoLocal);
   KEYWORD(canAutoHide);
+  KEYWORD(importAsDec);
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minglotus-6 wrote:

I revised the state to a 2-bit struct member of `GlobalValueSummary::GVFlags`

https://github.com/llvm/llvm-project/pull/87597