Make (most of) --trace-codegen available in release mode. Better output.

src/codegen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 40 matching lines @@
 
 Comment::~Comment() {
   if (msg_[0] == '[') __ RecordComment("]");
 }
 
 #endif  // DEBUG
 
 #undef __
 
 
-void CodeGenerator::MakeCodePrologue(CompilationInfo* info) {
-#ifdef DEBUG
+void CodeGenerator::MakeCodePrologue(CompilationInfo* info, const char* kind) {
   bool print_source = false;
   bool print_ast = false;
   const char* ftype;
 
-  if (Isolate::Current()->bootstrapper()->IsActive()) {
+  if (info->isolate()->bootstrapper()->IsActive()) {
     print_source = FLAG_print_builtin_source;
     print_ast = FLAG_print_builtin_ast;
     ftype = "builtin";
   } else {
     print_source = FLAG_print_source;
     print_ast = FLAG_print_ast;
     ftype = "user-defined";
   }
 
   if (FLAG_trace_codegen || print_source || print_ast) {
-    PrintF("*** Generate code for %s function: ", ftype);
+    PrintF("[generating %s code for %s function: ", kind, ftype);
     if (info->IsStub()) {
       const char* name =
           CodeStub::MajorName(info->code_stub()->MajorKey(), true);
       PrintF("%s", name == NULL ? "<unknown>" : name);
     } else {
-      info->function()->name()->ShortPrint();
+      PrintF("%s", *info->function()->debug_name()->ToCString());
     }
-    PrintF(" ***\n");
+    PrintF("]\n");
   }
 
+#ifdef DEBUG
   if (!info->IsStub() && print_source) {
     PrintF("--- Source from AST ---\n%s\n",
            PrettyPrinter().PrintProgram(info->function()));
   }
 
   if (!info->IsStub() && print_ast) {
     PrintF("--- AST ---\n%s\n",
            AstPrinter().PrintProgram(info->function()));
   }
 #endif  // DEBUG
@@ skipping 125 matching lines @@
   ASSERT(result_size_ == 1 || result_size_ == 2);
 #ifdef _WIN64
   return result | ((result_size_ == 1) ? 0 : 2);
 #else
   return result;
 #endif
 }
 
 
 } }  // namespace v8::internal