Prepare push to trunk. Now working on version 3.12.16.

ChangeLog

Index: ChangeLog
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+2012-07-24: Version 3.12.15
+
+        Added PRESERVE_ASCII_NULL option to String::WriteAscii.
+        (issue 2252)
+
+        Added dependency to HLoadKeyed* instructions to prevent invalid hoisting.

[Jakob Kummerow, 2012/07/24 07:52:26]

nit: long line

+        (Chromium issue 137768)
+
+        Enabled building V8 for Android on Mac

[Jakob Kummerow, 2012/07/24 07:52:26]

nit: missing full stop. Also, let's make this s/V8/d8/

+
+        Interpret negative hexadecimal literals as NaN.
+        (issue 2240)
+
+        Fixed corner case when transforming dictionary to fast elements.
+        (issue 2249)
+
+        Fixed Windows build spam.

[Jakob Kummerow, 2012/07/24 07:52:26]

I don't think this is relevant.

+        (issue 2242)
+
+        Preserve rsi when probing for CPU features.

[Jakob Kummerow, 2012/07/24 07:52:26]

Is this visible to embedders/users?

+        (issue 2238)
+
+        Inserted missing write barrier in sliced string allocation.
+        (issue 2237)
+
+        Expose counters in javascript when using --track-gc-object-stats.
+
+        Enabled building and testing V8 on Android IA.
+
+        Added --trace-parse flag to parser.
+
+        Performance and stability improvements on all platforms.
+
+
 2012-07-18: Version 3.12.14
 
         Deactivated optimization of packed arrays.