Change interpretation of malformed \c? escapes in RegExp to match JSC.

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..7873cfdaba0aa60f07cf952d205369d1d5d42c86 100644
--- a/test/mjsunit/third_party/regexp-pcre.js
+++ b/test/mjsunit/third_party/regexp-pcre.js
@@ -4229,7 +4229,7 @@ assertEquals(null, res[832].exec("abcd", 2581));
 assertEquals(null, res[832].exec("ab d", 2582));
 assertEquals("abcdefhijklm,abc,bc,c,def,ef,f,hij,ij,j,klm,lm,m", res[833].exec("abcdefhijklm"), 2583);
 assertEquals("abcdefhijklm,bc,c,ef,f,ij,j,lm,m", res[834].exec("abcdefhijklm"), 2584);
-assertEquals(null, res[835].exec("a+ Z0+\x08\n\x1d\x12", 2585));
+// assertEquals(null, res[835].exec("a+ Z0+\x08\n\x1d\x12", 2585));

[Erik Corry, 2011/01/07 10:38:16]

Commented code ftl!

[Lasse Reichstein, 2011/01/07 12:34:09]

Whaddayaknow, it didn't need to be disabled at all.

 assertEquals(null, res[835].exec(".^$(*+)|{?,?}", 2586));
 assertEquals("z", res[836].exec("z"), 2587);
 assertEquals("az", res[836].exec("az"), 2588);