Correctly handle const constructors with type parameters.

tests/co19/co19-dart2js.status

Index: tests/co19/co19-dart2js.status
===================================================================
--- tests/co19/co19-dart2js.status	(revision 12694)
+++ tests/co19/co19-dart2js.status	(working copy)
@@ -874,7 +874,6 @@
 [ $compiler == dart2js ]
 Language/07_Classes/6_Constructors/1_Generative_Constructors_A13_t01: Fail # compiler cancelled: cannot resolve type T
 Language/07_Classes/8_Superclasses/1_Inheritance_and_Overriding_A02_t03: Fail # compiler cancelled: internal error: super property store not implemented
-Language/09_Generics/09_Generics_A04_t03: Fail # compiler cancelled: cannot resolve type N
 Language/11_Statements/13_Continue_A02_t12: Fail # compiler cancelled: cannot resolve label L
 Language/11_Statements/13_Continue_A02_t13: Fail # compiler cancelled: cannot resolve label L
 
@@ -1058,8 +1057,6 @@
 Language/10_Expressions/10_Instance_Creation/1_New_A04_t01: Fail # Checks that it is a compile-time error if a class does not declare a constructor with the same name.
 Language/10_Expressions/10_Instance_Creation/2_Const_A01_t02: Fail # Checks that it is a compile-time error if a constant object expression does not have arguments.
 Language/10_Expressions/10_Instance_Creation/2_Const_A03_t01: Fail # Checks that it is a compile-time error if T includes any type variables as a type argument.
-Language/10_Expressions/10_Instance_Creation/2_Const_A04_t02: Fail # Checks that it is a compile-time error if T.id is the name of a non-constant constructor declared by the type T.
-Language/10_Expressions/10_Instance_Creation/2_Const_A05_t02: Fail # Checks that it is a compile-time error if T declares a non-constant constructor with the same name as the declaration of T.
 Language/10_Expressions/14_Method_Invocation/3_Static_Invocation_A03_t04: Fail # Checks that it is a static warning if interface C does not declare a static method or getter m.
 Language/10_Expressions/20_Equality_A01_t15: Fail # Checks that equality expressions cannot be operands of another equality expression.
 Language/10_Expressions/20_Equality_A01_t16: Fail # Checks that equality expressions cannot be operands of another equality expression.