Remove Gay's dtoa from sources.

test/cctest/test-conversions.cc

Index: test/cctest/test-conversions.cc
diff --git a/test/cctest/test-conversions.cc b/test/cctest/test-conversions.cc
index c62bbaaabbdb33a185956ac745feda39e193ddd9..eef718482889bcd969ea66219f0df19b04187c24 100644
--- a/test/cctest/test-conversions.cc
+++ b/test/cctest/test-conversions.cc
@@ -141,9 +141,6 @@ TEST(LongNumberStr) {
 }
 
 
-extern "C" double gay_strtod(const char* s00, const char** se);
-
-
 TEST(MaximumSignificantDigits) {
   char num[] =
       "4.4501477170144020250819966727949918635852426585926051135169509"
@@ -160,12 +157,12 @@ TEST(MaximumSignificantDigits) {
       "847003580761626016356864581135848683152156368691976240370422601"
       "6998291015625000000000000000000000000000000000e-308";
 
-  CHECK_EQ(gay_strtod(num, NULL), StringToDouble(num, NO_FLAGS));
+  CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(num, NO_FLAGS));
 
   // Changes the result of strtod (at least in glibc implementation).
   num[sizeof(num) - 8] = '1';
 
-  CHECK_EQ(gay_strtod(num, NULL), StringToDouble(num, NO_FLAGS));
+  CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(num, NO_FLAGS));
 }
 
 TEST(MinimumExponent) {
@@ -185,19 +182,19 @@ TEST(MinimumExponent) {
   "470035807616260163568645811358486831521563686919762403704226016"
   "998291015625000000000000000000000000000000000e-1108";
 
-  CHECK_EQ(gay_strtod(num, NULL), StringToDouble(num, NO_FLAGS));
+  CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(num, NO_FLAGS));
 
   // Changes the result of strtod (at least in glibc implementation).
   num[sizeof(num) - 8] = '1';
 
-  CHECK_EQ(gay_strtod(num, NULL), StringToDouble(num, NO_FLAGS));
+  CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(num, NO_FLAGS));
 }
 
 
 TEST(MaximumExponent) {
   char num[] = "0.16e309";
 
-  CHECK_EQ(gay_strtod(num, NULL), StringToDouble(num, NO_FLAGS));
+  CHECK_EQ(1.59999999999999997765e+308, StringToDouble(num, NO_FLAGS));
 }