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

src/codegen.cc

Index: src/codegen.cc
diff --git a/src/codegen.cc b/src/codegen.cc
index ff4003c1eff09b5a76d9c60e802b3c2575620469..af2f1f667ba4ca4f22c779cd98b5001e8817fc98 100644
--- a/src/codegen.cc
+++ b/src/codegen.cc
@@ -58,13 +58,12 @@ Comment::~Comment() {
 #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";
@@ -75,17 +74,18 @@ void CodeGenerator::MakeCodePrologue(CompilationInfo* info) {
   }
 
   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()));