Merge DMD r304: refactor invariant => immutable --- dmd/cast.c | 2 +- dmd/declaration.c | 2 +- dmd/declaration.h | 3 +-- dmd/doc.c | 2 +- dmd/expression.c | 6 +++--- dmd/interpret.c | 4 ++-- dmd/mtype.c | 2 +- dmd/mtype.h | 2 +- dmd/parse.c | 4 ++-- dmd/struct.c | 2 +- 10 files changed, 14 insertions(+), 15 deletions(-)