Add central bridge for liveedit support

src/codegen.cc

Index: src/codegen.cc
diff --git a/src/codegen.cc b/src/codegen.cc
index 1c3ecc40591488dae0f04f2f72f24cb0c7d3068f..01ee6d07204528e730192fffbfff149bd16f5cc2 100644
--- a/src/codegen.cc
+++ b/src/codegen.cc
@@ -31,6 +31,7 @@
 #include "codegen-inl.h"
 #include "compiler.h"
 #include "debug.h"
+#include "liveedit.h"
 #include "oprofile-agent.h"
 #include "prettyprinter.h"
 #include "register-allocator-inl.h"
@@ -234,6 +235,7 @@ Handle<Code> CodeGenerator::MakeCodeEpilogue(MacroAssembler* masm,
 // all the pieces into a Code object. This function is only to be called by
 // the compiler.cc code.
 Handle<Code> CodeGenerator::MakeCode(CompilationInfo* info) {
+  LiveEditFunctionTracker live_edit_tracker(info->function());
   Handle<Script> script = info->script();
   if (!script->IsUndefined() && !script->source()->IsUndefined()) {
     int len = String::cast(script->source())->length();
@@ -245,6 +247,7 @@ Handle<Code> CodeGenerator::MakeCode(CompilationInfo* info) {
   MacroAssembler masm(NULL, kInitialBufferSize);
   CodeGenerator cgen(&masm);
   CodeGeneratorScope scope(&cgen);
+  live_edit_tracker.RecordFunctionScope(info->function()->scope());
   cgen.Generate(info, PRIMARY);
   if (cgen.HasStackOverflow()) {
     ASSERT(!Top::has_pending_exception());
@@ -253,7 +256,9 @@ Handle<Code> CodeGenerator::MakeCode(CompilationInfo* info) {
 
   InLoopFlag in_loop = (cgen.loop_nesting() != 0) ? IN_LOOP : NOT_IN_LOOP;
   Code::Flags flags = Code::ComputeFlags(Code::FUNCTION, in_loop);
-  return MakeCodeEpilogue(cgen.masm(), flags, info);
+  Handle<Code> result = MakeCodeEpilogue(cgen.masm(), flags, info);
+  live_edit_tracker.RecordFunctionCode(result);
+  return result;
 }