llvm-project

d2ac21d3 - [RecursiveASTVisitor] Assert we skip implicit instantiations. (#110899)

[RecursiveASTVisitor] Assert we skip implicit instantiations. (#110899) In DEF_TRAVERSE_TMPL_SPEC_DECL, we attempt to skip implicit instantiations by detecting that D->getTemplateArgsAsWritten() returns nullptr. Previously, this was not reliable. To ensure we do not regress, add an assertion and a test.