x64 / ntdllntoskrnl /

_CONTEXT_FOR_STACKWALK

← 10.0.28000.3231 2 builds latest →
struct _CONTEXT_FOR_STACKWALK;/* opaque */

Declared but not defined in ntoskrnl's public PDB for this build: a forward declaration, or a name that only appears in mangled C++ symbols. The layout isn't public here.