Update lockfile to reflect clang-ast dependency
diff --git a/third-party/Cargo.lock b/third-party/Cargo.lock
index aa0a528..1519302 100644
--- a/third-party/Cargo.lock
+++ b/third-party/Cargo.lock
@@ -38,6 +38,16 @@
 ]
 
 [[package]]
+name = "clang-ast"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06a1f20328a0881a6a6198d7320ac202af537cf671542078c6896cd21f1df394"
+dependencies = [
+ "once_cell",
+ "serde",
+]
+
+[[package]]
 name = "clap"
 version = "2.33.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -131,9 +141,12 @@
 name = "cxxbridge-macro"
 version = "1.0.46"
 dependencies = [
+ "clang-ast",
  "cxx",
  "proc-macro2",
  "quote",
+ "serde",
+ "serde_json",
  "syn",
 ]
 
@@ -203,6 +216,12 @@
 ]
 
 [[package]]
+name = "once_cell"
+version = "1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
+
+[[package]]
 name = "pkg-config"
 version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"