Separate UnicodeCache out into an own file.

src/dateparser-inl.h

Index: src/dateparser-inl.h
diff --git a/src/dateparser-inl.h b/src/dateparser-inl.h
index 8973aa0d4ff286b20a8b3c4af57981d0bfa19d69..e0b5cf9c55a4308ea073c74791b091a6db30d3fd 100644
--- a/src/dateparser-inl.h
+++ b/src/dateparser-inl.h
@@ -7,6 +7,7 @@
 
 #include "src/char-predicates-inl.h"
 #include "src/dateparser.h"
+#include "src/unicode-cache-inl.h"
 
 namespace v8 {
 namespace internal {
@@ -193,6 +194,29 @@ DateParser::DateToken DateParser::DateStringTokenizer<CharType>::Scan() {
 
 
 template <typename Char>
+bool DateParser::InputReader<Char>::SkipWhiteSpace() {
+  if (unicode_cache_->IsWhiteSpaceOrLineTerminator(ch_)) {
+    Next();
+    return true;
+  }
+  return false;
+}
+
+
+template <typename Char>
+bool DateParser::InputReader<Char>::SkipParentheses() {
+  if (ch_ != '(') return false;
+  int balance = 0;
+  do {
+    if (ch_ == ')') --balance;
+    else if (ch_ == '(') ++balance;
+    Next();
+  } while (balance > 0 && ch_);
+  return true;
+}
+
+
+template <typename Char>
 DateParser::DateToken DateParser::ParseES6DateTime(
     DateStringTokenizer<Char>* scanner,
     DayComposer* day,