treewide: automatic rewriting of all comment-style type annotations

Performed using https://github.com/ilevkivskyi/com2ann

This has no actual effect on the codebase as type checkers (still)
support both and negligible effect on runtime performance since
__future__ annotations ameliorates that. Technically, the bytecode would
be bigger for non function-local annotations, of which we have many
either way.

So if it doesn't really matter, why do a large-scale refactor? Simple:
because people keep wanting to, but it's getting nickle-and-dimed. If
we're going to do this we might as well do it consistently in one shot,
using tooling that guarantees repeatability and correctness.

Repeat with:

```
com2ann mesonbuild/
```

1 files changed, 2 insertions, 2 deletions

diff --git a/mesonbuild/dependencies/hdf5.py b/mesonbuild/dependencies/hdf5.py
index 501e89d1b..a437e8472 100644
--- a/mesonbuild/dependencies/hdf5.py
+++ b/mesonbuild/dependencies/hdf5.py
@@ -48,7 +48,7 @@ class HDF5PkgConfigDependency(PkgConfigDependency):
             return
 
         # some broken pkgconfig don't actually list the full path to the needed includes
-        newinc = []  # type: T.List[str]
+        newinc: T.List[str] = []
         for arg in self.compile_args:
             if arg.startswith('-I'):
                 stem = 'static' if self.static else 'shared'
@@ -56,7 +56,7 @@ class HDF5PkgConfigDependency(PkgConfigDependency):
                     newinc.append('-I' + str(Path(arg[2:]) / stem))
         self.compile_args += newinc
 
-        link_args = []  # type: T.List[str]
+        link_args: T.List[str] = []
         for larg in self.get_link_args():
             lpath = Path(larg)
             # some pkg-config hdf5.pc (e.g. Ubuntu) don't include the commonly-used HL HDF5 libraries,