Improve header file inclusions. Drop some unneeded includes, and add some needed ones.

Review URL: http://codereview.chromium.org/3253001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/contexts.h

@@ -28,6 +28,9 @@
 #ifndef V8_CONTEXTS_H_
 #define V8_CONTEXTS_H_
 
+#include "heap.h"
+#include "objects.h"
+
 namespace v8 {
 namespace internal {
 

src/flags.h

@@ -27,8 +27,6 @@
 #ifndef V8_FLAGS_H_
 #define V8_FLAGS_H_
 
-#include "checks.h"
-
 namespace v8 {
 namespace internal {
 

src/heap-inl.h

@@ -28,7 +28,8 @@
 #ifndef V8_HEAP_INL_H_
 #define V8_HEAP_INL_H_
 
-#include "log.h"
+#include "heap.h"
+#include "objects.h"
 #include "v8-counters.h"
 
 namespace v8 {

src/heap.h

@@ -30,6 +30,7 @@
 
 #include <math.h>
 
+#include "spaces.h"
 #include "splay-tree-inl.h"
 #include "v8-counters.h"
 

src/objects-inl.h

@@ -35,11 +35,13 @@
 #ifndef V8_OBJECTS_INL_H_
 #define V8_OBJECTS_INL_H_
 
-#include "memory.h"
+#include "objects.h"
 #include "contexts.h"
 #include "conversions-inl.h"
-#include "objects.h"
+#include "heap.h"
+#include "memory.h"
 #include "property.h"
+#include "spaces.h"
 
 namespace v8 {
 namespace internal {

src/v8.h

@@ -60,9 +60,6 @@
 #include "flags.h"
 
 // Objects & heap
-#include "objects.h"
-#include "spaces.h"
-#include "heap.h"
 #include "objects-inl.h"
 #include "spaces-inl.h"
 #include "heap-inl.h"