Enable inlining of functions that reference context slots.

src/ast.cc

Index: src/ast.cc
===================================================================
--- src/ast.cc	(revision 9282)
+++ src/ast.cc	(working copy)
@@ -529,7 +529,7 @@
 
 
 bool VariableProxy::IsInlineable() const {
-  return var()->IsUnallocated() || var()->IsStackAllocated();
+  return !var()->IsLookupSlot();

[Kevin Millikin (Chromium), 2011/09/15 09:45:01]

I'd prefer to keep this a whitelist, listing the things that we can support. 
It's too risky that someone will add a new kind of thing that becomes inlinable
without supporting it.

 }