microsoft
Revisit `BasicSpecifiers::External` for user-authored `extern`
Revisit this one the IFC has a better representation for the syntactic extern on function declarations vs compiler-generated/implicit external-linkage.
e.g.
extern void f();
void g();
On MSVC, both of the functions above have external-linkage, but BasicSpecifiers::External is insufficient for telling us whether the user wrote extern or external-linkage was generated by the compiler.
On MSVC, both of the functions above have external-linkage, but BasicSpecifiers::External is insufficient for telling us whether the user wrote extern or external-linkage was generated by the compiler.
This is a recent change in the MSVC behavior - not intended by the original IFC spec. The IFC aims, at its core, to persist semantic resolution.
