Include what you use for allocation, api, assembler, and ast.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 4146bd4c1d8469dfab3ccfd9cf8254e070fa9956..2682fb638572c6a8910e6584ebe079170dada1ef 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -25,34 +25,36 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include "v8.h"
-
 #include "api.h"
 
-#include "arguments.h"
+#include <math.h>  // For isnan.
+#include <string.h>  // For memcpy, strlen.
+#include "../include/v8-debug.h"
+#include "../include/v8-profiler.h"
+#include "../include/v8-testing.h"
 #include "bootstrapper.h"
 #include "compiler.h"
+#include "conversions-inl.h"
+#include "counters.h"
 #include "debug.h"
 #include "deoptimizer.h"
 #include "execution.h"
-#include "flags.h"
 #include "global-handles.h"
 #include "heap-profiler.h"
 #include "messages.h"
-#include "natives.h"
 #include "parser.h"
 #include "platform.h"
 #include "profile-generator-inl.h"
+#include "property-details.h"
+#include "property.h"
 #include "runtime-profiler.h"
 #include "scanner-character-streams.h"
-#include "serialize.h"
 #include "snapshot.h"
+#include "unicode-inl.h"
 #include "v8threads.h"
 #include "version.h"
 #include "vm-state-inl.h"
 
-#include "../include/v8-profiler.h"
-#include "../include/v8-testing.h"
 
 #define LOG_API(isolate, expr) LOG(isolate, ApiEntryCall(expr))