Add dynamic/0 to the list of auto-imported erlang types

Summary: As title

Reviewed By: michalmuskala

Differential Revision: D52037862

fbshipit-source-id: 4111b0e381cc12ae0ad782f09011be373d3b80e8

crates/syntax/src/ast/erlang.rs

@@ -245,6 +245,8 @@ pub fn is_erlang_type(f: &str, a: usize) -> bool {
         ("node", 0) => true,
         ("timeout", 0) => true,
         ("no_return", 0) => true,
+
+        ("dynamic", 0) => true,
         _ => false,
     }
 }