C-array warnings
volatile becomes error
Merge pull request #650 from WalterBright/noVolatile

volatile becomes error
Merge pull request #662 from WalterBright/deprecate-c-array

C-array warnings
make typedef an error
Merge pull request #663 from WalterBright/typedef-error

make typedef an error
fix Issue 13538 - Divide old C style syntax from D style grammar rule
Issue 13539 - Disallow optional template parameters with C-style syntax