sync backend files with dmc
fix Issue 11395 - link error (struct+opEquals) on separate compilation
Merge pull request #2697 from WalterBright/sync-with-dmc

sync backend files with dmc
Merge pull request #2698 from 9rnsr/fix11395

[REG2.064a] Issue 11395 - link error (struct+opEquals) on separate compilation