Semantic does not produce a SymbolId for C in declare class C {}.

I believe it should - all BindingIdentifiers should have a SymbolId, and we do produce SymbolIds for other TS-only identifiers e.g. type N = number;.

In this example, only A gets assigned a SymbolId:

class A {}
declare class B {}
export declare class C {}

Playground

Relevant code: