Remove the JSON AST printing support.

src/codegen.cc

Index: src/codegen.cc
diff --git a/src/codegen.cc b/src/codegen.cc
index ceea7b9feabd6a7b2d8637144c1b2222cccd9dc3..3f651205ff88285c91cf2b98f2494d4dba853f28 100644
--- a/src/codegen.cc
+++ b/src/codegen.cc
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// 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:
@@ -62,18 +62,15 @@ void CodeGenerator::MakeCodePrologue(CompilationInfo* info) {
 #ifdef DEBUG
   bool print_source = false;
   bool print_ast = false;
-  bool print_json_ast = false;
   const char* ftype;
 
   if (Isolate::Current()->bootstrapper()->IsActive()) {
     print_source = FLAG_print_builtin_source;
     print_ast = FLAG_print_builtin_ast;
-    print_json_ast = FLAG_print_builtin_json_ast;
     ftype = "builtin";
   } else {
     print_source = FLAG_print_source;
     print_ast = FLAG_print_ast;
-    print_json_ast = FLAG_print_json_ast;
     Vector<const char> filter = CStrVector(FLAG_hydrogen_filter);
     if (print_source && !filter.is_empty()) {
       print_source = info->function()->name()->IsEqualTo(filter);
@@ -81,9 +78,6 @@ void CodeGenerator::MakeCodePrologue(CompilationInfo* info) {
     if (print_ast && !filter.is_empty()) {
       print_ast = info->function()->name()->IsEqualTo(filter);
     }
-    if (print_json_ast && !filter.is_empty()) {
-      print_json_ast = info->function()->name()->IsEqualTo(filter);
-    }
     ftype = "user-defined";
   }
 
@@ -102,11 +96,6 @@ void CodeGenerator::MakeCodePrologue(CompilationInfo* info) {
     PrintF("--- AST ---\n%s\n",
            AstPrinter().PrintProgram(info->function()));
   }
-
-  if (print_json_ast) {
-    JsonAstBuilder builder;
-    PrintF("%s", builder.BuildProgram(info->function()));
-  }
 #endif  // DEBUG
 }