Remove the unused return value in ASTImporter::Imported [NFC]

Summary:
`ASTImporter::Imported` currently returns a Decl, but that return value is not used by the ASTImporter (or anywhere else)
nor is it documented.

Reviewers: balazske, martong, a.sidorin, shafik

Reviewed By: balazske, martong

Subscribers: rnkovacs, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59595

llvm-svn: 356592

1 files changed, 1 insertions, 2 deletions

diff --git a/clang/lib/AST/ExternalASTMerger.cpp b/clang/lib/AST/ExternalASTMerger.cpp
index d7cbf4dfd95..29911caa36b 100644
--- a/clang/lib/AST/ExternalASTMerger.cpp
+++ b/clang/lib/AST/ExternalASTMerger.cpp
@@ -110,7 +110,7 @@ public:
 
   /// Whenever a DeclContext is imported, ensure that ExternalASTSource's origin
   /// map is kept up to date.  Also set the appropriate flags.
-  Decl *Imported(Decl *From, Decl *To) override {
+  void Imported(Decl *From, Decl *To) override {
     if (auto *ToDC = dyn_cast<DeclContext>(To)) {
       const bool LoggingEnabled = Parent.LoggingEnabled();
       if (LoggingEnabled)
@@ -153,7 +153,6 @@ public:
       ToContainer->getPrimaryContext()->setMustBuildLookupTable();
       assert(Parent.CanComplete(ToContainer));
     }
-    return To;
   }
   ASTImporter &GetReverse() { return Reverse; }
 };