Part of this is to allow creating a USR for the canonical decl of that which is implicit and does
not have a source location.
rdar://28978992
llvm-svn: 285868
Whether we call an ImportDecl a decl or a reference symbol role is
somewhat academic, but in practice it's more like a declaration because
it is interesting even to consumers who wouldn't care about references.
Most importantly, we want to report the module dependencies of system
modules even when we have declaration-only filtering.
rdar://problem/27134855
llvm-svn: 275454
These codepaths would generate warnings with GCC on linux even though the switch
was covered. Add llvm_unreachable markers to indicate that the switch should be
covered. NFC.
llvm-svn: 260865
Argyrios Kyrtzidis