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

runtime/vm/flow_graph_compiler_arm.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_ARM.
+#if defined(TARGET_ARCH_ARM)
+
+#include "vm/flow_graph_compiler.h"
+
+#include "vm/longjump.h"
+
+namespace dart {
+
+void FlowGraphCompiler::Bailout(const char* reason) {
+  const char* kFormat = "FlowGraphCompiler Bailout: %s.";
+  intptr_t len = OS::SNPrint(NULL, 0, kFormat, reason) + 1;
+  char* chars = reinterpret_cast<char*>(
+      Isolate::Current()->current_zone()->Allocate(len));
+  OS::SNPrint(chars, len, kFormat, reason);
+  const Error& error = Error::Handle(
+      LanguageError::New(String::Handle(String::New(chars))));
+  Isolate::Current()->long_jump_base()->Jump(1, error);
+}
+
+
+void FlowGraphCompiler::CompileGraph() {
+  Bailout("CompileGraph");
+}
+
+
+void FlowGraphCompiler::FinalizePcDescriptors(const Code& code) {
+  UNIMPLEMENTED();
+}
+
+
+void FlowGraphCompiler::FinalizeVarDescriptors(const Code& code) {
+  UNIMPLEMENTED();
+}
+
+
+void FlowGraphCompiler::FinalizeExceptionHandlers(const Code& code) {
+  UNIMPLEMENTED();
+}
+
+
+}  // namespace dart
+
+#endif  // defined TARGET_ARCH_ARM