Update V8 to r5780 as required by WebKit r71558

Change-Id: Ie3936550b99967a13755930d0dac0a59c3562625
diff --git a/test/mjsunit/mjsunit.status b/test/mjsunit/mjsunit.status
index 3c8cbdb..820dca7 100644
--- a/test/mjsunit/mjsunit.status
+++ b/test/mjsunit/mjsunit.status
@@ -45,6 +45,10 @@
 # Skip long running test in debug and allow it to timeout in release mode.
 regress/regress-524: (PASS || TIMEOUT), SKIP if $mode == debug
 
+# Stack manipulations in LiveEdit are buggy - see bug 915
+debug-liveedit-check-stack: SKIP
+debug-liveedit-patch-positions-replace: SKIP
+
 [ $arch == arm ]
 
 # Slow tests which times out in debug mode.
@@ -61,14 +65,9 @@
 # Skip long running test in debug mode on ARM.
 string-indexof-2: PASS, SKIP if $mode == debug
 
-# Stack manipulations in LiveEdit is implemented for ia32 only.
-debug-liveedit-check-stack: SKIP
 
 [ $arch == mips ]
 
-# Stack manipulations in LiveEdit is implemented for ia32 only.
-debug-liveedit-check-stack: SKIP
-
 # Skip all tests on MIPS.
 *: SKIP