Update pycparser to 2.19

[pyup-bot]

This PR updates pycparser from 2.14 to 2.19.

Changelog

2.19

- PR 277: Fix parsing of floating point literals
- PR 254: Add support for parsing empty structs
- PR 240: Fix enum formatting in generated C code (also 216)
- PR 222: Add support for pragma in struct declarations

2.18

- PR 161 & 184: Update bundled PLY version to 3.10
- PR 158: Add support for the __int128 type.
- PR 169: Handle more tricky TYPEID in declarators.
- PR 178: Add columns to the coord of each node

2.17

- Again functionality identical to 2.15 and 2.16; the difference is that the
 tarball now contains Python files with properly set permissions.

2.16

- Functionally identical to 2.15, but fixes a packaging problem that caused
 failed installation (_build_tables wasn't rerun in the pycparser/ dir).

2.15

- PR 121: Update bundled PLY version to 3.8
- Issue 117: Fix parsing of extra semi-colons inside structure declarations.
- PR 109: Update c_generator to add {} around nested named initializers.
- PR 101: Added support for parsing pragmas into the AST.
- Additional fake headers and typedefs, manifest fixes (97, 106, 111).
- Testing with Python 3.5 instead of 3.3 now (3.4 and 3.5 are the 3.x versions
 tested).
- PR 145: More complete support for offsetof()
- Issue 116: Fix line numbers recorded for empty and compound statements.
- Minor performance improvement to the invalid string literal regex.

Links

• PyPI: https://pypi.org/project/pycparser
• Changelog: https://pyup.io/changelogs/pycparser/
• Repo: https://github.com/eliben/pycparser

[pyup-bot]

Closing this in favor of #479