Bug 273467 - ecma 9.3.1 - ToNumber(signed hex string) is NaN.

js/tests/ecma/TypeConversion/9.3.1-3.js

@@ -99,9 +99,14 @@ new TestCase( SECTION,
 
 new TestCase( SECTION,
 	      '- "-0x123456789abcde8"',
-	      81985529216486880,
+	      NaN,
 	      - "-0x123456789abcde8" );
 
+new TestCase( SECTION,
+	      '- "+0x123456789abcde8"',
+	      NaN,
+	      - "+0x123456789abcde8" );
+
 // Convert some large numbers to string
 
 
@@ -687,9 +692,14 @@ new TestCase( SECTION,
 
 new TestCase( SECTION,
 	      "- \"-0x123456789abcde8\"",
-	      81985529216486880,
+	      NaN,
 	      - "-0x123456789abcde8" );
 
+new TestCase( SECTION,
+	      "- \"+0x123456789abcde8\"",
+	      NaN,
+	      - "+0x123456789abcde8" );
+
 // the following two tests are not strictly ECMA 1.0
 
 new TestCase( SECTION,