Also accept `#` in fragment.
Fix bug in parsing URI where first character of path needs escaping.
The characters are escaped, but parsing doesn't fail, like it previously
did on misplaced general delimiters in those places
Fixes#34451.
Bug: https://dartbug.com/34451
Change-Id: I99aa39bd2909661802ad9d1bb5dada94d579141b
Reviewed-on: https://dart-review.googlesource.com/74780
Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Lasse R.H. Nielsen
429bca8e65