[cfe-dev] Unique identifier for NamedDecls

[Stephen Pegoraro via cfe-dev]

Hi there,

I am migrating a libclang based tool to LibTooling and am a bit stumped on
how to uniquely identify a named declaration when traversing the AST. Using
libclang I could use clang_getCursorUSR to obtain the unified symbol but my
digging through the docs for LibTooling so far has only turned up
IdentifierInfo which doesn't give anything unique between function
overloads.

Could someone please point me in the right direction?
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