[clang] 'VarTemplateSpecializationDecl::getSourceRange; changes after serialization of the AST

[tomasz-kaminski-sonarsource]

For the following code snippet, the end token of the source range produced from VarTemplateSpecializationDecl::getSourceRange::getSourceRange changes from the right angle bracket of the template argument list (which is expected per D139705) to name of variable:

template<class U>
//                 v - before serialization, expected
int binTempl<int, U>;
//  ^ - after serialization

See D146784.