Update syn, quote and proc-macro2

hcpl · hcpl · commit d367c14af8bd · 2018-04-01T08:24:37.000+03:00
diff --git a/html5ever/Cargo.toml b/html5ever/Cargo.toml
@@ -41,6 +41,6 @@ rustc-test = "0.3"
 typed-arena = "1.3.0"
 
 [build-dependencies]
-quote = "0.4"
-syn = { version = "0.12", features = ["extra-traits", "full", "fold"] }
-proc-macro2 = "0.2"
+quote = "0.5"
+syn = { version = "0.13", features = ["extra-traits", "full", "fold"] }
+proc-macro2 = "0.3"
