[SAB] Implement SharedArrayBuffer.prototype.slice

src/messages.h

Index: src/messages.h
diff --git a/src/messages.h b/src/messages.h
index bb595c2f8a50710d3925481236a8de24823aa8d4..0a0a36b48c8286d1eeaca4bf3fdfe3378cd6f9b1 100644
--- a/src/messages.h
+++ b/src/messages.h
@@ -464,6 +464,11 @@ class ErrorUtils : public AllStatic {
     "'caller' and 'arguments' are restricted function properties and cannot "  \
     "be accessed in this context.")                                            \
   T(ReturnMethodNotCallable, "The iterator's 'return' method is not callable") \
+  T(SharedArrayBufferTooShort,                                                 \
+    "Derived SharedArrayBuffer constructor created a buffer which was too "    \
+    "small")                                                                   \
+  T(SharedArrayBufferSpeciesThis,                                              \
+    "SharedArrayBuffer subclass returned this from species constructor")       \
   T(StaticPrototype, "Classes may not have static property named prototype")   \
   T(StrictCannotAssign, "Cannot assign to read only '%' in strict mode")       \
   T(StrictDeleteProperty, "Cannot delete property '%' of %")                   \