Fixed Code::FindCodeAgeSequence logic, removing a dead method on the way.

Review URL: https://codereview.chromium.org/11364177

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/assembler-mips.h

@@ -525,9 +525,6 @@ class Assembler : public AssemblerBase {
   Assembler(Isolate* isolate, void* buffer, int buffer_size);
   ~Assembler();
 
-  // Dummy for cross platform compatibility.
-  void set_predictable_code_size(bool value) { }
-
   // GetCode emits any pending (non-emitted) code and fills the descriptor
   // desc. GetCode() is idempotent; it returns the same result if no other
   // Assembler functions are invoked in between GetCode() calls.

src/objects.cc

@@ -8834,13 +8834,13 @@ bool Code::IsOld() {
 
 
 byte* Code::FindCodeAgeSequence() {
-  if (kind() != FUNCTION && kind() != OPTIMIZED_FUNCTION) return NULL;
-  if (strlen(FLAG_stop_at) == 0 &&
+  return FLAG_age_code &&
+      strlen(FLAG_stop_at) == 0 &&
       !ProfileEntryHookStub::HasEntryHook() &&
-      (kind() == FUNCTION && !has_debug_break_slots())) {
-    return FindPlatformCodeAgeSequence();
-  }
-  return NULL;
+      (kind() == OPTIMIZED_FUNCTION ||
+       (kind() == FUNCTION && !has_debug_break_slots()))
+      ? FindPlatformCodeAgeSequence()
+      : NULL;
 }