[clang] [Clang] Implement P3034R1 Module Declarations Shouldn’t be Macros (PR #90574)

[Vassil Vassilev via cfe-commits]

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@@ -905,6 +912,7 @@ void Preprocessor::Lex(Token &Result) {
     // This token is injected to represent the translation of '#include "a.h"'
     // into "import a.h;". Mimic the notional ';'.
     case tok::annot_module_include:
+    case tok::annot_repl_input_end:
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vgvassilev wrote:

> IIUC, we should reset states like ModuleDeclState when we meet a tok::annot_repl_input_end token in preprocessor.

Quite possibly. This change was introduced by @ChuanqiXu9, maybe he has a better idea?

https://github.com/llvm/llvm-project/pull/90574