Change cached powers of 10 to avoid constants that need a static

initializer to be called on process startup instead of being in
the read-only section.
Review URL: http://codereview.chromium.org/8177018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9544 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/cached-powers.cc

@@ -134,14 +134,12 @@ static const CachedPower kCachedPowers[] = {
 };
 
 static const int kCachedPowersLength = ARRAY_SIZE(kCachedPowers);
-static const int kCachedPowersOffset = -kCachedPowers[0].decimal_exponent;
+static const int kCachedPowersOffset = 348;  // -1 * the first decimal_exponent.
 static const double kD_1_LOG2_10 = 0.30102999566398114;  //  1 / lg(10)
-const int PowersOfTenCache::kDecimalExponentDistance =
-    kCachedPowers[1].decimal_exponent - kCachedPowers[0].decimal_exponent;
-const int PowersOfTenCache::kMinDecimalExponent =
-    kCachedPowers[0].decimal_exponent;
-const int PowersOfTenCache::kMaxDecimalExponent =
-    kCachedPowers[kCachedPowersLength - 1].decimal_exponent;
+// Difference between the decimal exponents in the table above.
+const int PowersOfTenCache::kDecimalExponentDistance = 8;
+const int PowersOfTenCache::kMinDecimalExponent = -348;
+const int PowersOfTenCache::kMaxDecimalExponent = 340;
 
 void PowersOfTenCache::GetCachedPowerForBinaryExponentRange(
     int min_exponent,