Shivam Kunwar 4262045ba9
[DebugInfo] Fix segfault in constructSubprogramScopeDIE with null subprogram type (#184299)
Guard against null DISubroutineType when checking for variadic
parameters in `constructSubprogramScopeDIE`. `DISubprograms` may lack a
type field when using LineTablesOnly emission, causing a null pointer
dereference.

Fixes #184003

Co-authored-by: Shivam Kunwar <phyBrackets@users.noreply.github.com>
2026-03-19 15:27:04 +05:30
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