add toHash() to Typedef
add unittest for Typedef.toHash
add unittest for Typedef.toHash
some update
datetime scope imports

more scope imports

restore std.time global import

check scope imports

update windows unitises
add local import
fix import
fix scope import for Windows
remove .dup
deprecate splitter in std.array

use static import

update PR
unqual

update unittests
std.complex: clean imports
std.conv: clean imports
std.csv: clean imports
std.demangle: clean imports
fix comment
std.format: clean imports
std.getopt: clean imports
std.json: clean imports
std.path: clean imports