Fix linux build.

runtime/vm/debugger_api_impl_test.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 "include/dart_debugger_api.h"
 #include "platform/assert.h"
 #include "vm/dart_api_impl.h"
 #include "vm/unit_test.h"
 
 namespace dart {
@@ skipping 23 matching lines @@
 
 
 static char const* ToCString(Dart_Handle str) {
   EXPECT(Dart_IsString(str));
   char const* c_str = NULL;
   Dart_StringToCString(str, &c_str);
   return c_str;
 }
 
 
-static char const* BPFunctionName(Dart_StackTrace trace) {
-  Dart_ActivationFrame frame;
-  Dart_Handle res = Dart_GetActivationFrame(trace, 0, &frame);
-  EXPECT_NOT_ERROR(res);
-  Dart_Handle func_name;
-  res = Dart_ActivationFrameInfo(frame, &func_name, NULL, NULL);
-  EXPECT_NOT_ERROR(res);
-  return ToCString(func_name);
-}
-
-
 static char const* BreakpointInfo(Dart_StackTrace trace) {
   static char info_str[128];
   Dart_ActivationFrame frame;
   Dart_Handle res = Dart_GetActivationFrame(trace, 0, &frame);
   EXPECT_NOT_ERROR(res);
   Dart_Handle func_name;
   Dart_Handle url;
   intptr_t line_number = 0;
   res = Dart_ActivationFrameInfo(frame, &func_name, &url, &line_number);
   EXPECT_NOT_ERROR(res);
   OS::SNPrint(info_str, sizeof(info_str), "function %s (%s:%d)",
               ToCString(func_name), ToCString(url), line_number);
   return info_str;
 }
 
 
 static void PrintValue(Dart_Handle value, bool expand);
 
 
 static void PrintObjectList(Dart_Handle list, const char* prefix, bool expand) {
   intptr_t list_length = 0;
   Dart_Handle retval = Dart_ListLength(list, &list_length);
+  EXPECT_NOT_ERROR(retval);
   for (int i = 0; i + 1 < list_length; i += 2) {
     Dart_Handle name_handle = Dart_ListGetAt(list, i);
     EXPECT_NOT_ERROR(name_handle);
     EXPECT(Dart_IsString(name_handle));
     Dart_Handle value_handle = Dart_ListGetAt(list, i + 1);
     OS::Print("\n        %s %s = ", prefix, ToCString(name_handle));
     PrintValue(value_handle, expand);
   }
 }
 
@@ skipping 723 matching lines @@
   EXPECT(Dart_IsString(source));
   char const* source_chars;
   Dart_StringToCString(source, &source_chars);
   OS::Print("\n=== source: ===\n%s", source_chars);
   EXPECT_STREQ(kScriptChars, source_chars);
 }
 
 #endif  // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64).
 
 }  // namespace dart