syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     //      if (Subtarget.isTargetKnownWindowsMSVC() ||
context_before:     //   UEFI does not link any MSVC or GCC standard library.
context_after:     //          Subtarget.isTargetWindowsItanium()) {