Improve performance of String::ToCString for OneByteString and parsing of doubles. Leads to signifi…

runtime/vm/unicode.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_UNICODE_H_
 #define VM_UNICODE_H_
 
 #include "vm/allocation.h"
 #include "vm/globals.h"
 
@@ skipping 61 matching lines @@
                             uint16_t* dst,
                             intptr_t len);
   static bool DecodeToUTF32(const uint8_t* utf8_array,
                             intptr_t array_len,
                             int32_t* dst,
                             intptr_t len);
   static bool DecodeCStringToUTF32(const char* str,
                                    int32_t* dst,
                                    intptr_t len);
 
- private:
   static const int32_t kMaxOneByteChar   = 0x7F;
   static const int32_t kMaxTwoByteChar   = 0x7FF;
   static const int32_t kMaxThreeByteChar = 0xFFFF;
   static const int32_t kMaxFourByteChar  = Utf::kMaxCodePoint;
 
+ private:
   static bool IsTrailByte(uint8_t code_unit) {
     return (code_unit & 0xC0) == 0x80;
   }
 
   static bool IsNonShortestForm(uint32_t code_point, size_t num_code_units) {
     return code_point < kOverlongMinimum[num_code_units];
   }
 
   static bool IsLatin1SequenceStart(uint8_t code_unit) {
     // Check if utf8 sequence is the start of a codepoint <= U+00FF
@@ skipping 124 matching lines @@
   // Data for small code points with one mapping
   static const int16_t stage2_[];
 
   // Data for large code points or code points with both mappings.
   static const int32_t stage2_exception_[][2];
 };
 
 }  // namespace dart
 
 #endif  // VM_UNICODE_H_