The generated code uses different helpers than the SSA. In SSA, there are calls to buildFunctionType and _isTest. The CPS uses checkSubtypeOfRuntimeType, the "one size fits all" method we also use to test against type variable types.
When the function type has no type variables in it we could hoist the function type into a constant, but the constant system does not support type representation constants at the moment. But it seems like an optimization we may want to add later.
BUG=
R=karlklose@google.com
Review URL: https://codereview.chromium.org//1180973003.
Asger Feldthaus
fb38d61dba