Rename scanner.* to scanner-character-streams.* and scanner-base.* to scanner.*

src/scanner-character-streams.h

Index: src/scanner-character-streams.h
diff --git a/src/scanner.h b/src/scanner-character-streams.h
similarity index 97%
rename from src/scanner.h
rename to src/scanner-character-streams.h
index 6422ee8cab8ab71868b47f504d37e89fb3a47a4d..58b8c188c2b70058bac3ea343319a5af7e32f26b 100644
--- a/src/scanner.h
+++ b/src/scanner-character-streams.h
@@ -25,8 +25,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_SCANNER_H_
-#define V8_SCANNER_H_
+#ifndef V8_SCANNER_CHARACTER_STREAMS_H_
+#define V8_SCANNER_CHARACTER_STREAMS_H_
 
 #include "scanner-base.h"
 
@@ -126,4 +126,4 @@ class ExternalTwoByteStringUC16CharacterStream: public UC16CharacterStream {
 
 } }  // namespace v8::internal
 
-#endif  // V8_SCANNER_H_
+#endif  // V8_SCANNER_CHARACTER_STREAMS_H_