fix hash map implementation
fix hash map implementation

standard library passes all tests now

raulgrell/zig,Dimenus/zig,zig-lang/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig,andrewrk/zig,zig-lang/zig,raulgrell/zig,Dimenus/zig,Dimenus/zig