MFC r298192,299234,299238,299736:file 5.27.
Revert r298920 until we have addressed all known regressions on head/ aftersettle. file is now downgraded to 5.25.PR: bin/209211Requested by: Tomoaki AOKIRelnotes: yes
MFC r298192: MFV r298178:Update file to 5.26.Relnotes: yes
MFC r284237,284277:file 5.23.Relnotes: yes