Add a stubbed-out implementation of FlowGraphCompiler for ia32 and arm.

runtime/vm/code_generator_x64.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/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/code_generator.h"
 
 #include "lib/error.h"
@@ skipping 200 matching lines @@
   __ nop(5);
 }
 
 
 // Verify assumptions (in debug mode only).
 // - No two deopt descriptors have the same node id (deoptimization).
 // - No two ic-call descriptors have the same node id (type feedback).
 // - No two descriptors of same kind have the same PC.
 // A function without unique ids is marked as non-optimizable (e.g., because of
 // finally blocks).
-static void VerifyPcDescriptors(const PcDescriptors& descriptors,
-                                bool check_ids) {
+void CodeGenerator::VerifyPcDescriptors(const PcDescriptors& descriptors,
+                                        bool check_ids) {
 #if defined(DEBUG)
   // TODO(srdjan): Implement a more efficient way to check, currently drop
   // the check for too large number of descriptors.
   if (descriptors.Length() > 3000) {
     if (FLAG_trace_compiler) {
       OS::Print("Not checking pc decriptors, length %d\n",
                 descriptors.Length());
     }
     return;
   }
@@ skipping 2462 matching lines @@
   const Error& error = Error::Handle(
       Parser::FormatError(script, token_index, "Error", format, args));
   va_end(args);
   Isolate::Current()->long_jump_base()->Jump(1, error);
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64