First cut at impementing ES6 TypedArrays in V8.

src/runtime.h

Index: src/runtime.h
diff --git a/src/runtime.h b/src/runtime.h
index f82963edac552ab38b78c41de18e492c6f51420d..620ef55e66083425923536f1fdd2f085191163e1 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -219,6 +219,7 @@ namespace internal {
   F(NumberToExponential, 2, 1) \
   F(NumberToPrecision, 2, 1)
 
+
 #define RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \
   /* Reflection */ \
   F(FunctionSetInstanceClassName, 2, 1) \
@@ -347,6 +348,12 @@ namespace internal {
   F(ArrayBufferGetByteLength, 1, 1)\
   F(ArrayBufferSliceImpl, 3, 1) \
   \
+  F(TypedArrayInitialize, 6, 1) \
+  F(TypedArrayGetBuffer, 1, 1) \
+  F(TypedArrayGetByteLength, 1, 1) \
+  F(TypedArrayGetByteOffset, 1, 1) \
+  F(TypedArrayGetLength, 1, 1) \
+  \
   /* Statements */ \
   F(NewClosure, 3, 1) \
   F(NewObject, 1, 1) \