Implement Function.prototype.toMethod.

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index b10a47665cf96ae35dc6f8bc3d3d67f7dd7ea352..4314e76c09cb71edaa0acec336df24bef4de6b67 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -185,6 +185,7 @@ namespace internal {
   V(Symbol, stack_trace_symbol, StackTraceSymbol)                              \
   V(Symbol, detailed_stack_trace_symbol, DetailedStackTraceSymbol)             \
   V(Symbol, normal_ic_symbol, NormalICSymbol)                                  \
+  V(Symbol, home_object_symbol, HomeObjectSymbol)                              \
   V(FixedArray, materialized_objects, MaterializedObjects)                     \
   V(FixedArray, allocation_sites_scratchpad, AllocationSitesScratchpad)        \
   V(FixedArray, microtask_queue, MicrotaskQueue)