Replace "codegen" with "derive"

serde_derive_internals/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "serde_derive_internals"
+version = "0.14.2"
+authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
+license = "MIT/Apache-2.0"
+description = "AST representation used by Serde derive macros. Unstable."
+homepage = "https://serde.rs"
+repository = "https://github.com/serde-rs/serde"
+documentation = "https://docs.serde.rs/serde_derive_internals/"
+keywords = ["serde", "serialization"]
+readme = "README.md"
+include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
+
+[dependencies]
+syn = { version = "0.11.10", default-features = false, features = ["parsing"] }
+synom = "0.11"
+
+[badges]
+travis-ci = { repository = "serde-rs/serde" }