Remove special casing from LongEmul.toDouble

Change-Id: I9be46c69dd38280658f694e9d3e75406efb910eb

Author: gkdn

dev/core/super/com/google/gwt/lang/LongLib.java

@@ -431,9 +431,6 @@ public static String toBase64(long value) {
   }
 
   public static double toDouble(LongEmul a) {
-    if (LongLib.eq(a, Const.MIN_VALUE)) {
-      return -9223372036854775808.0;
-    }
     if (LongLib.lt(a, Const.ZERO)) {
       return -toDoubleHelper(LongLib.neg(a));
     }

dev/core/test/com/google/gwt/lang/LongLibTestBase.java

@@ -165,6 +165,15 @@ public void testConversions() {
     assertEquals(-10, LongLib.toInt(longFromBits(0, -10)));
     assertEquals(-10, LongLib.toInt(longFromBits(100, -10)));
     assertEquals(-10, LongLib.toInt(longFromBits(-100000, -10)));
+
+    assertEquals(0d, LongLib.toDouble(LongLib.fromInt(0)));
+    assertEquals(1d, LongLib.toDouble(LongLib.fromInt(1)));
+    assertEquals(10d, LongLib.toDouble(LongLib.fromInt(10)));
+    assertEquals(-1d, LongLib.toDouble(LongLib.fromInt(-1)));
+    assertEquals(-10d, LongLib.toDouble(LongLib.fromInt(-10)));
+
+    assertEquals(-9.223372036854776E18, LongLib.toDouble(Const.MIN_VALUE));
+    assertEquals(9.223372036854776E18, LongLib.toDouble(Const.MAX_VALUE));
   }
 
   public void testDiv() {