[sema] Fix assertion hit when using libclang to index a particular C++ snippet involving templates.

Assertion hit was in ClassTemplateSpecializationDecl::getSourceRange().

llvm-svn: 247373

1 files changed, 7 insertions, 2 deletions

diff --git a/clang/lib/Sema/SemaTemplate.cpp b/clang/lib/Sema/SemaTemplate.cpp
index 527005094c9..b5b8b1ea8a9 100644
--- a/clang/lib/Sema/SemaTemplate.cpp
+++ b/clang/lib/Sema/SemaTemplate.cpp
@@ -7386,11 +7386,16 @@ Sema::ActOnExplicitInstantiation(Scope *S,
       }
     }
 
+    // Set the template specialization kind. Make sure it is set before
+    // instantiating the members which will trigger ASTConsumer callbacks.
+    Specialization->setTemplateSpecializationKind(TSK);
     InstantiateClassTemplateSpecializationMembers(TemplateNameLoc, Def, TSK);
+  } else {
+
+    // Set the template specialization kind.
+    Specialization->setTemplateSpecializationKind(TSK);
   }
 
-  // Set the template specialization kind.
-  Specialization->setTemplateSpecializationKind(TSK);
   return Specialization;
 }