Compiler exception when using pipe operator ( <| or |> ) in generic method with yield

[NN---]

using System;
using System.Linq;
using System.Collections.Generic;

class A
{
  public F(i : int) : bool { true }
}

module M
{
  public F[T]() : IEnumerable[int]
  {
    for(;false;)
    {
      def j = match(A().F <| 1) { |_ =>1 };      
    }

    yield default(int);
  }
}

module P
{
 Main() : void { }
}

Compiler fails:

←[01;31merror←[0m: internal compiler error: got ArgumentException (The specified
 Type must not be a generic type definition.
Parameter name: type)
   at System.Reflection.Emit.TypeBuilder.GetField(Type type, FieldInfo field)
   at Nemerle.Compiler.ILEmitter.FrameworkGetField(Type t, FieldInfo m)
   at Nemerle.Compiler.ILEmitter.GetFieldInfo(Type _from_type, IField meth)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit_exprs_push(LocalBuilder[] local_variables,
 list`1 exprs)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.emit(TExpr expr)
   at Nemerle.Compiler.ILEmitter.Run()
   at Nemerle.Compiler.MethodBuilder._N__N_lambda__69172__69279.apply_void()
   at Nemerle.Compiler.TypeBuilder.BeforeFinalizeType()
   at Nemerle.Compiler.TypeBuilder.EmitImplementation()
   at Nemerle.Compiler.TypeBuilder._N__N_lambda__64132__64162.apply_void()
   at Nemerle.Compiler.Solver.Enqueue(FunctionVoid action)
   at Nemerle.Compiler.ManagerClass.Run()
   at Nemerle.CommandlineCompiler.MainClass.main_with_catching()

While removing [T] from F, making it non generic makes compile happy.