Heap profiler: emit more descriptive names for system objects and properties.

test/cctest/test-heap-profiler.cc

Index: test/cctest/test-heap-profiler.cc
diff --git a/test/cctest/test-heap-profiler.cc b/test/cctest/test-heap-profiler.cc
index 141b42f7b80a8f3744e5ff96208bc4500e53cdca..bd08d4cec65b7e7d5fceb3b5cfd09c40a06414e7 100644
--- a/test/cctest/test-heap-profiler.cc
+++ b/test/cctest/test-heap-profiler.cc
@@ -574,10 +574,10 @@ TEST(HeapSnapshotCodeObjects) {
 
   // Find references to code.
   const v8::HeapGraphNode* compiled_code =
-      GetProperty(compiled, v8::HeapGraphEdge::kInternal, "code");
+      GetProperty(compiled, v8::HeapGraphEdge::kInternal, "shared");
   CHECK_NE(NULL, compiled_code);
   const v8::HeapGraphNode* lazy_code =
-      GetProperty(lazy, v8::HeapGraphEdge::kInternal, "code");
+      GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared");
   CHECK_NE(NULL, lazy_code);
 
   // Verify that non-compiled code doesn't contain references to "x"
@@ -1257,9 +1257,9 @@ TEST(HeapSnapshotRetainedObjectInfo) {
       ccc, v8::HeapGraphNode::kString, "CCC");
   CHECK_NE(NULL, n_CCC);
 
-  CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "Native"));
-  CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "Native"));
-  CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "Native"));
+  CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "native"));
+  CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "native"));
+  CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "native"));
 }