Implement Target hook to retrieve size of critical section.
Remove struct ModuleInfoDeclaration.
Merge pull request #2060 from ibuclaw/critsecsize

Implement Target hook to retrieve size of critical section.
fix Issue 10134 - Mutual referencing templates error
Merge pull request #1926 from ibuclaw/rm_modinfodecl

Remove struct ModuleInfoDeclaration.
Trivial differences between gdc/dmd front ends.
Merge pull request #2063 from ibuclaw/ingcc

Trivial differences between gdc/dmd front ends.
fix Issue 10106 - [ICE] Ice in glue.c:1215 + 2 error messages without lines
Merge pull request #2067 from 9rnsr/fix10106

[test only] Issue 10106 - [ICE] Ice in glue.c:1215 + 2 error messages without lines
Merge pull request #2062 from 9rnsr/fix10134

[2.063a] Issue 10134 - Mutual referencing templates error