Handle dynamic as bottom inside of function type reps

test/codegen/expect/functions.js

Index: test/codegen/expect/functions.js
diff --git a/test/codegen/expect/functions.js b/test/codegen/expect/functions.js
index 2aa52b8d1aa4c3f1a17b750c4c600c62175f4dc9..97b7b59024cc895fb114e8b7361e904b7b70923d 100644
--- a/test/codegen/expect/functions.js
+++ b/test/codegen/expect/functions.js
@@ -8,7 +8,7 @@ dart_library.library('functions', null, /* Imports */[
   function bootstrap() {
     return dart.list([new Foo()], Foo);
   }
-  dart.fn(bootstrap, () => dart.functionType(core.List$(Foo), []));
+  dart.fn(bootstrap, () => dart.definiteFunctionType(core.List$(Foo), []));
   let A2B$ = dart.generic(function(A, B) {
     let A2B = dart.typedef('A2B', () => dart.functionType(B, [A]));
     return A2B;
@@ -17,7 +17,7 @@ dart_library.library('functions', null, /* Imports */[
   function id(f) {
     return f;
   }
-  dart.fn(id, () => dart.functionType(A2B$(Foo, Foo), [A2B$(Foo, Foo)]));
+  dart.fn(id, () => dart.definiteFunctionType(A2B$(Foo, Foo), [A2B$(Foo, Foo)]));
   class Foo extends core.Object {}
   function main() {
     core.print(bootstrap()[dartx.get](0));