[clang][NFC] Move documentation of `Sema` functions into `Sema.h`

This patch moves documentation of `Sema` functions from `.cpp` files to `Sema.h` when there was no documentation in the latter, or it can be trivially subsumed. More complicated cases when there's less trivial divergence between documentation attached to declaration and the one attached to implementation are left for a later PR that would require review.

It appears that doxygen can find the documentation for a function defined out-of-line even if it's attached to an implementation, and not declaration. But other tools, e.g. clangd, are not as powerful. So this patch significantly improves autocompletion experience for (at least) clangd-based IDEs.

1 files changed, 0 insertions, 3 deletions

diff --git a/clang/lib/Sema/SemaModule.cpp b/clang/lib/Sema/SemaModule.cpp
index 98e7971..9655a39 100644
--- a/clang/lib/Sema/SemaModule.cpp
+++ b/clang/lib/Sema/SemaModule.cpp
@@ -841,8 +841,6 @@ void Sema::createImplicitModuleImportForErrorRecovery(SourceLocation Loc,
   VisibleModules.setVisible(Mod, Loc);
 }
 
-/// We have parsed the start of an export declaration, including the '{'
-/// (if present).
 Decl *Sema::ActOnStartExportDecl(Scope *S, SourceLocation ExportLoc,
                                  SourceLocation LBraceLoc) {
   ExportDecl *D = ExportDecl::Create(Context, CurContext, ExportLoc);
@@ -978,7 +976,6 @@ static bool checkExportedDecl(Sema &S, Decl *D, SourceLocation BlockStart) {
   return true;
 }
 
-/// Complete the definition of an export declaration.
 Decl *Sema::ActOnFinishExportDecl(Scope *S, Decl *D, SourceLocation RBraceLoc) {
   auto *ED = cast<ExportDecl>(D);
   if (RBraceLoc.isValid())