Change RegExp syntax to fail on invalid ranges like [\d-x], [x-\d] and [\d-\d].

test/mjsunit/third_party/regexp-pcre.js

Index: test/mjsunit/third_party/regexp-pcre.js
diff --git a/test/mjsunit/third_party/regexp-pcre.js b/test/mjsunit/third_party/regexp-pcre.js
index dcb1b320fdca9df8db307a4efe622b5ee7361417..d9fa976855d14febffdf6c9697000f85f4a431ba 100644
--- a/test/mjsunit/third_party/regexp-pcre.js
+++ b/test/mjsunit/third_party/regexp-pcre.js
@@ -962,7 +962,7 @@ res[882] = /[az-]+/;
 res[883] = /[a\-z]+/;
 res[884] = /[a-z]+/;
 res[885] = /[\d-]+/;
-res[886] = /[\d-z]+/;
+// res[886] - Disabled after making [\d-z] invalid to be compatible with JSC.
 res[887] = /\x5c/;
 res[888] = /\x20Z/;
 res[889] = /ab{3cd/;
@@ -1346,7 +1346,7 @@ res[1266] = /((Z)+|A)*/;
 res[1267] = /(Z()|A)*/;
 res[1268] = /(Z(())|A)*/;
 res[1269] = /a*/g;
-res[1270] = /^[\d-a]/;
+// res[1270] disabled after making /^[\d-a]/ invalid to be compatible with JSC.
 res[1271] = /[[:space:]]+/;
 res[1272] = /[[:blank:]]+/;
 res[1273] = /[\s]+/;
@@ -2530,7 +2530,7 @@ assertEquals(null, res[431].exec("a\x0db ", 882));
 assertEquals(null, res[431].exec("a\x85b", 883));
 assertThrows("var re = /(?-+a)/;", 884);
 assertEquals(null, res[443].exec("aaaa", 885));
-assertEquals(null, res[443].exec("bacxxx", 886));
+// assertEquals(null, res[443].exec("bacxxx", 886));
 assertEquals(null, res[443].exec("bbaccxxx ", 887));
 assertEquals(null, res[443].exec("bbbacccxx", 888));
 assertEquals(null, res[443].exec("aaaa", 889));
@@ -4391,9 +4391,10 @@ assertEquals("abcdxyz", res[884].exec("abcdxyz"), 2743);
 assertEquals("12-34", res[885].exec("12-34"), 2744);
 assertEquals(null, res[885].exec("*** Failers", 2745));
 assertEquals(null, res[885].exec("aaa", 2746));
-assertEquals("12-34z", res[886].exec("12-34z"), 2747);
-assertEquals(null, res[886].exec("*** Failers", 2748));
-assertEquals(null, res[886].exec("aaa", 2749));
+// Disabled. To be compatible with JSC, the regexp is no longer valid.
+// assertEquals("12-34z", res[886].exec("12-34z"), 2747);
+// assertEquals(null, res[886].exec("*** Failers", 2748));
+// assertEquals(null, res[886].exec("aaa", 2749));
 assertEquals("\\", res[887].exec("\\\\"), 2750);
 assertEquals(" Z", res[888].exec("the Zoo"), 2751);
 assertEquals(null, res[888].exec("*** Failers", 2752));
@@ -5355,11 +5356,12 @@ assertEquals("", res[1269].exec("-things"), 3707);
 assertEquals("", res[1269].exec("0digit"), 3708);
 assertEquals("", res[1269].exec("*** Failers"), 3709);
 assertEquals("", res[1269].exec("bcdef    "), 3710);
-assertEquals("a", res[1270].exec("abcde"), 3711);
-assertEquals("-", res[1270].exec("-things"), 3712);
-assertEquals("0", res[1270].exec("0digit"), 3713);
-assertEquals(null, res[1270].exec("*** Failers", 3714));
-assertEquals(null, res[1270].exec("bcdef    ", 3715));
+// Disabled. To be compatible with JSC, the RegExp is no longer valid.
+// assertEquals("a", res[1270].exec("abcde"), 3711);
+// assertEquals("-", res[1270].exec("-things"), 3712);
+// assertEquals("0", res[1270].exec("0digit"), 3713);
+// assertEquals(null, res[1270].exec("*** Failers", 3714));
+// assertEquals(null, res[1270].exec("bcdef    ", 3715));
 assertEquals(null, res[1271].exec("> \x09\n\x0c\x0d\x0b<", 3716));
 assertEquals(null, res[1271].exec(" ", 3717));
 assertEquals(null, res[1272].exec("> \x09\n\x0c\x0d\x0b<", 3718));