Revert of [serializer] print use count of external references.

src/external-reference-table.cc

Index: src/external-reference-table.cc
diff --git a/src/external-reference-table.cc b/src/external-reference-table.cc
index 7ad5e43aa8bf1575dd04d23805960d165ba5a262..aa61117c97392b3593ac792bb99e37076480b0db 100644
--- a/src/external-reference-table.cc
+++ b/src/external-reference-table.cc
@@ -10,11 +10,6 @@
 #include "src/counters.h"
 #include "src/deoptimizer.h"
 #include "src/ic/stub-cache.h"
-
-#if defined(DEBUG) && defined(V8_OS_LINUX) && !defined(V8_OS_ANDROID)
-#define SYMBOLIZE_FUNCTION
-#include <execinfo.h>
-#endif  // DEBUG && V8_OS_LINUX && !V8_OS_ANDROID
 
 namespace v8 {
 namespace internal {
@@ -46,28 +41,6 @@
   AddStubCache(isolate);
   AddDeoptEntries(isolate);
   AddApiReferences(isolate);
-}
-
-#ifdef DEBUG
-void ExternalReferenceTable::ResetCount() {
-  for (ExternalReferenceEntry& entry : refs_) entry.count = 0;
-}
-
-void ExternalReferenceTable::PrintCount() {
-  for (int i = 0; i < refs_.length(); i++) {
-    v8::base::OS::Print("index=%5d count=%5d  %-60s\n", i, refs_[i].count,
-                        refs_[i].name);
-  }
-}
-#endif  // DEBUG
-
-// static
-const char* ExternalReferenceTable::ResolveSymbol(void* address) {
-#ifdef SYMBOLIZE_FUNCTION
-  return backtrace_symbols(&address, 1)[0];
-#else
-  return "<unresolved>";
-#endif  // SYMBOLIZE_FUNCTION
 }
 
 void ExternalReferenceTable::AddReferences(Isolate* isolate) {
@@ -363,24 +336,22 @@
   };
 
   static const AccessorRefTable getters[] = {
-#define ACCESSOR_INFO_DECLARATION(name)     \
-  { FUNCTION_ADDR(&Accessors::name##Getter), \
-    "Redirect to Accessors::" #name "Getter"},
-  ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION)
+#define ACCESSOR_INFO_DECLARATION(name) \
+  {FUNCTION_ADDR(&Accessors::name##Getter), "Accessors::" #name "Getter"},
+      ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION)
 #undef ACCESSOR_INFO_DECLARATION
   };
   static const AccessorRefTable setters[] = {
 #define ACCESSOR_SETTER_DECLARATION(name) \
-  { FUNCTION_ADDR(&Accessors::name), "Accessors::" #name},
-  ACCESSOR_SETTER_LIST(ACCESSOR_SETTER_DECLARATION)
+  {FUNCTION_ADDR(&Accessors::name), "Accessors::" #name},
+      ACCESSOR_SETTER_LIST(ACCESSOR_SETTER_DECLARATION)
 #undef ACCESSOR_INFO_DECLARATION
   };
 
   for (unsigned i = 0; i < arraysize(getters); ++i) {
-    const char* name = getters[i].name + 12;  // Skip "Redirect to " prefix.
-    Add(getters[i].address, name);
+    Add(getters[i].address, getters[i].name);
     Add(AccessorInfo::redirect(isolate, getters[i].address, ACCESSOR_GETTER),
-        getters[i].name);
+        "");
   }
 
   for (unsigned i = 0; i < arraysize(setters); ++i) {
@@ -441,8 +412,7 @@
   intptr_t* api_external_references = isolate->api_external_references();
   if (api_external_references != nullptr) {
     while (*api_external_references != 0) {
-      Address address = reinterpret_cast<Address>(*api_external_references);
-      Add(address, ResolveSymbol(address));
+      Add(reinterpret_cast<Address>(*api_external_references), "<embedder>");
       api_external_references++;
     }
   }