Upgrade to 3.29

Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.

Bug: 17370214

Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/test/mjsunit/compiler/regress-rep-change.js b/test/mjsunit/compiler/regress-rep-change.js
index 9370999..c8a0983 100644
--- a/test/mjsunit/compiler/regress-rep-change.js
+++ b/test/mjsunit/compiler/regress-rep-change.js
@@ -25,6 +25,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// Flags: --allow-natives-syntax
+
 // Regression test for the case where a phi has two input operands with
 // the same value.
 
@@ -35,8 +37,11 @@
   for (var i = start; i < 10; i++) { }
 }
 
-var n = 5000000;
+var n = 3;
 
 for (var i = 0; i < n; ++i) {
   test(0);
 }
+
+%OptimizeFunctionOnNextCall(test);
+test(0);