[regexp] Add support for dotAll flag

src/regexp/regexp-parser.h

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_REGEXP_REGEXP_PARSER_H_
 #define V8_REGEXP_REGEXP_PARSER_H_
 
 #include "src/objects.h"
 #include "src/regexp/regexp-ast.h"
 #include "src/zone/zone.h"
@@ skipping 181 matching lines @@
   void Reset(int pos);
 
   // Reports whether the pattern might be used as a literal search string.
   // Only use if the result of the parse is a single atom node.
   bool simple();
   bool contains_anchor() { return contains_anchor_; }
   void set_contains_anchor() { contains_anchor_ = true; }
   int captures_started() { return captures_started_; }
   int position() { return next_pos_ - 1; }
   bool failed() { return failed_; }
+  bool dotall() const { return dotall_; }
   bool ignore_case() const { return ignore_case_; }
   bool multiline() const { return multiline_; }
   bool unicode() const { return unicode_; }
 
   static bool IsSyntaxCharacterOrSlash(uc32 c);
 
   static const int kMaxCaptures = 1 << 16;
   static const uc32 kEndMarker = (1 << 21);
 
  private:
@@ skipping 93 matching lines @@
   void ScanForCaptures();
 
   Isolate* isolate_;
   Zone* zone_;
   Handle<String>* error_;
   ZoneList<RegExpCapture*>* captures_;
   ZoneList<RegExpCapture*>* named_captures_;
   ZoneList<RegExpBackReference*>* named_back_references_;
   FlatStringReader* in_;
   uc32 current_;
+  bool dotall_;
   bool ignore_case_;
   bool multiline_;
   bool unicode_;
   int next_pos_;
   int captures_started_;
   // The capture count is only valid after we have scanned for captures.
   int capture_count_;
   bool has_more_;
   bool simple_;
   bool contains_anchor_;
   bool is_scanned_for_captures_;
   bool failed_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGEXP_REGEXP_PARSER_H_