Add structopt dependency in version 0.3.7

This patch series replaces argparse with structopt in the argument
handling code. As a first step, we need structopt as a dependency.

Import subrepo structopt/:structopt at efbdda4753592e27bc430fb01f7b9650b2f3174d
Import subrepo bitflags/:bitflags at 30668016aca6bd3b02c766e8347e0b4080d4c296
Import subrepo clap/:clap at 784524f7eb193e35f81082cc69454c8c21b948f7
Import subrepo heck/:heck at 093d56fbf001e1506e56dbfa38631d99b1066df1
Import subrepo proc-macro-error/:proc-macro-error at 6c4cfe79a622c5de8ae68557993542be46eacae2
Import subrepo proc-macro2/:proc-macro2 at d5d48eddca4566e5438e8a2cbed4a74e049544de
Import subrepo quote/:quote at 727436c6c137b20f0f34dde5d8fda2679b9747ad
Import subrepo rustversion/:rustversion at 0c5663313516263059ce9059ef81fc7a1cf655ca
Import subrepo syn-mid/:syn-mid at 5d3d85414a9e6674e1857ec22a87b96e04a6851a
Import subrepo syn/:syn at e87c27e87f6f4ef8919d0372bdb056d53ef0d8f3
Import subrepo textwrap/:textwrap at abcd618beae3f74841032aa5b53c1086b0a57ca2
Import subrepo unicode-segmentation/:unicode-segmentation at 637c9874c4fe0c205ff27787faf150a40295c6c3
Import subrepo unicode-width/:unicode-width at 3033826f8bf05e82724140a981d5941e48fce393
Import subrepo unicode-xid/:unicode-xid at 4baae9fffb156ba229665b972a9cd5991787ceb7

1 files changed, 57 insertions, 0 deletions

diff --git a/proc-macro2/Cargo.toml b/proc-macro2/Cargo.toml
new file mode 100644
index 0000000..a7d0865
--- /dev/null
+++ b/proc-macro2/Cargo.toml
@@ -0,0 +1,57 @@
+[package]
+name = "proc-macro2"
+version = "1.0.7" # remember to update html_root_url
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+license = "MIT OR Apache-2.0"
+readme = "README.md"
+keywords = ["macros"]
+repository = "https://github.com/alexcrichton/proc-macro2"
+homepage = "https://github.com/alexcrichton/proc-macro2"
+documentation = "https://docs.rs/proc-macro2"
+edition = "2018"
+description = """
+A stable implementation of the upcoming new `proc_macro` API. Comes with an
+option, off by default, to also reimplement itself in terms of the upstream
+unstable API.
+"""
+
+[package.metadata.docs.rs]
+rustc-args = ["--cfg", "procmacro2_semver_exempt"]
+rustdoc-args = ["--cfg", "procmacro2_semver_exempt"]
+
+[dependencies]
+unicode-xid = "0.2"
+
+[dev-dependencies]
+quote = { version = "1.0", default_features = false }
+
+[features]
+proc-macro = []
+default = ["proc-macro"]
+
+# Expose methods Span::start and Span::end which give the line/column location
+# of a token.
+span-locations = []
+
+# This feature no longer means anything.
+nightly = []
+
+[badges]
+travis-ci = { repository = "alexcrichton/proc-macro2" }
+
+[workspace]
+members = ["benches/bench-libproc-macro"]
+
+[patch.crates-io]
+# Our doc tests depend on quote which depends on proc-macro2. Without this line,
+# the proc-macro2 dependency of quote would be the released version of
+# proc-macro2. Quote would implement its traits for types from that proc-macro2,
+# meaning impls would be missing when tested against types from the local
+# proc-macro2.
+#
+# Travis builds that are in progress at the time that you publish may spuriously
+# fail. This is because they'll be building a local proc-macro2 which carries
+# the second-most-recent version number, pulling in quote which resolves to a
+# dependency on the just-published most recent version number. Thus the patch
+# will fail to apply because the version numbers are different.
+proc-macro2 = { path = "." }