Minor header cleanup.

Review-Url: https://codereview.chromium.org/2272013002
Cr-Commit-Position: refs/heads/master@{#38888}

src/dateparser.h

@@ -7,7 +7,7 @@
 
 #include "src/allocation.h"
 #include "src/char-predicates.h"
-#include "src/parsing/scanner.h"
+#include "src/unicode-cache.h"
 
 namespace v8 {
 namespace internal {

src/json-parser.cc

@@ -11,10 +11,10 @@
 #include "src/field-type.h"
 #include "src/messages.h"
 #include "src/objects-inl.h"
-#include "src/parsing/scanner.h"
 #include "src/parsing/token.h"
 #include "src/property-descriptor.h"
 #include "src/transitions.h"
+#include "src/unicode-cache.h"
 
 namespace v8 {
 namespace internal {

src/parsing/scanner.cc

@@ -14,7 +14,6 @@
 #include "src/char-predicates-inl.h"
 #include "src/conversions-inl.h"
 #include "src/list-inl.h"
-#include "src/parsing/parser.h"
 
 namespace v8 {
 namespace internal {