Introduce Instance.kind.

runtime/vm/report_test.cc

 // Copyright (c) 2014, 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 "platform/assert.h"
 #include "vm/report.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
@@ skipping 15 matching lines @@
       trace_buffer->PrintToJSONStream(&js);
       EXPECT_SUBSTRING("{\"type\":\"TraceBuffer\",\"members\":["
                        "{\"type\":\"TraceBufferEntry\",\"time\":",
                        js.ToCString());
       // Skip time.
       EXPECT_SUBSTRING("\"message\":{\"type\":\"JSCompatibilityWarning\","
                        "\"script\":{\"type\":\"@Script\",\"fixedId\":true,"
                        "\"id\":\"libraries\\/-1\\/scripts\\/Plug\","
                        "\"uri\":\"Plug\","
                        "\"_kind\":\"script\"},\"tokenPos\":0,"
-                       "\"message\":{\"type\":\"@String\"",
+                       "\"message\":{\"type\":\"@Instance\"",
                        js.ToCString());
       // Skip private _OneByteString.
       EXPECT_SUBSTRING("\"valueAsString\":\"High Voltage\"",
                        js.ToCString());
     }
   }
   {
     const intptr_t token_pos = 1;
     const char* message = "Low Voltage";
     Report::MessageF(Report::kJSWarning, script, token_pos, "%s", message);
   }
   EXPECT_EQ(2, trace_buffer->Length());
   EXPECT_SUBSTRING("{\"type\":\"JSCompatibilityWarning\",\"script\":{\"type\":"
                    "\"@Script\",\"fixedId\":true,"
                    "\"id\":\"libraries\\/-1\\/scripts\\/Plug\","
                    "\"uri\":\"Plug\","
                    "\"_kind\":\"script\"},\"tokenPos\":0,"
-                   "\"message\":{\"type\":\"@String\"",
+                   "\"message\":{\"type\":\"@Instance\"",
                    trace_buffer->At(0)->message);
   // Skip private _OneByteString.
   EXPECT_SUBSTRING("\"valueAsString\":\"High Voltage\"",
                    trace_buffer->At(0)->message);
 
   EXPECT_SUBSTRING("{\"type\":\"JSCompatibilityWarning\",\"script\":{\"type\":"
                    "\"@Script\",\"fixedId\":true,"
                    "\"id\":\"libraries\\/-1\\/scripts\\/Plug\","
                    "\"uri\":\"Plug\","
                    "\"_kind\":\"script\"},\"tokenPos\":1,"
-                   "\"message\":{\"type\":\"@String\"",
+                   "\"message\":{\"type\":\"@Instance\"",
                    trace_buffer->At(1)->message);
   // Skip private _OneByteString.
   EXPECT_SUBSTRING("\"valueAsString\":\"Low Voltage\"",
                    trace_buffer->At(1)->message);
 
   delete trace_buffer;
 }
 
 }  // namespace dart