No implicit real -> creal
Implement enough of gluestub to pass the fail_compilation test cases
Do not create any scopes on the stack in the glue layer
Merge pull request #2430 from yebblies/stackscope

[DDMD] Do not create any scopes on the stack in the glue layer
Merge pull request #2434 from yebblies/gluestubfix

[DDMD] Implement enough of gluestub to pass the fail_compilation test cases
Merge pull request #2410 from yebblies/creal

[DDMD] Explicitly return a complex number