Remove more irrelevant IN_GCC macros.
Merge pull request #2357 from ibuclaw/rmingcc

Remove more irrelevant IN_GCC macros.
fix
Issue 10639 - Win64: wrong optimizer codegen with struct literal with complex fields
Merge pull request #2359 from WalterBright/fix10639

fix Issue 10639 - Win64: wrong optimizer codegen with struct literal with complex fields
fix Issue 10673 - memory corruption in interpret.c

- the gotoTarget field of LabelStatement was never initialized
Merge pull request #2363 from dawgfoto/fix10673

fix Issue 10673 - memory corruption in interpret.c
Get array length with detectable pattern
Explicitly type result of CondExp as a const char * to avoid passing an array to a c varargs function
Merge pull request #2364 from yebblies/jsonarraylength

[DDMD] Get array length with detectable pattern
Merge pull request #2365 from yebblies/variadicstring

[DDMD] Explicitly type result of CondExp as a const char * to avoid passing an array to a c varargs function