Gentle start with removing explicit interfaces

runtime/vm/parser.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/parser.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/compiler_stats.h"
@@ skipping 4493 matching lines @@
 
   LocalVariable* function_variable = NULL;
   Type& function_type = Type::ZoneHandle();
   if (variable_name != NULL) {
     // Since the function type depends on the signature of the closure function,
     // it cannot be determined before the formal parameter list of the closure
     // function is parsed. Therefore, we set the function type to a new
     // parameterized type to be patched after the actual type is known.
     // We temporarily use the class of the Function interface.
     const Class& unknown_signature_class = Class::Handle(
-        Type::Handle(Type::FunctionInterface()).type_class());
+        Type::Handle(Type::Function()).type_class());
     function_type = Type::New(
         unknown_signature_class, TypeArguments::Handle(), ident_pos);
     function_type.set_is_finalized_instantiated();  // No finalization needed.
 
     // Add the function variable to the scope before parsing the function in
     // order to allow self reference from inside the function.
     function_variable = new LocalVariable(ident_pos,
                                           *variable_name,
                                           function_type);
     function_variable->set_is_final();
@@ skipping 146 matching lines @@
       return false;
     }
   }
   return true;
 }
 
 
 bool Parser::IsSimpleLiteral(const AbstractType& type, Instance* value) {
   bool no_check = type.IsDynamicType();
   if ((CurrentToken() == Token::kINTEGER) &&
-      (no_check || type.IsIntInterface() || type.IsNumberInterface())) {
+      (no_check || type.IsIntInterface() || type.IsNumberType())) {
     *value = CurrentIntegerLiteral();
     return true;
   } else if ((CurrentToken() == Token::kDOUBLE) &&
-      (no_check || type.IsDoubleInterface() || type.IsNumberInterface())) {
+      (no_check || type.IsDoubleInterface() || type.IsNumberType())) {
     *value = CurrentDoubleLiteral();
     return true;
   } else if ((CurrentToken() == Token::kSTRING) &&
       (no_check || type.IsStringInterface())) {
     *value = CurrentLiteral()->raw();
     return true;
   } else if ((CurrentToken() == Token::kTRUE) &&
       (no_check || type.IsBoolInterface())) {
     *value = Bool::True();
     return true;
@@ skipping 4530 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart