[turbofan] Work around negative parameter count.

src/compiler/typer.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/base/flags.h"
 #include "src/bootstrapper.h"
 #include "src/compiler/graph-reducer.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/node.h"
 #include "src/compiler/node-properties.h"
@@ skipping 2392 matching lines @@
         return typer_->cache_->Get(kUint32ArrayFunc);
       } else if (*value == native->float32_array_fun()) {
         return typer_->cache_->Get(kFloat32ArrayFunc);
       } else if (*value == native->float64_array_fun()) {
         return typer_->cache_->Get(kFloat64ArrayFunc);
       }
     }
     int const arity =
         JSFunction::cast(*value)->shared()->internal_formal_parameter_count();
     switch (arity) {
+      case SharedFunctionInfo::kDontAdaptArgumentsSentinel:
+        // Some smart optimization at work... &%$!&@+$!
+        // https://code.google.com/p/chromium/issues/detail?id=500824

[Michael Starzinger, 2015/06/16 09:03:17]

nit: We probably don't need to reference the issue here.

[Benedikt Meurer, 2015/06/16 09:04:05]

Done.

+        return Type::Any(zone());
       case 0:
         return typer_->cache_->Get(kAnyFunc0);
       case 1:
         return typer_->cache_->Get(kAnyFunc1);
       case 2:
         return typer_->cache_->Get(kAnyFunc2);
       case 3:
         return typer_->cache_->Get(kAnyFunc3);
       default: {
+        DCHECK_LT(3, arity);
         Type** const params = zone()->NewArray<Type*>(arity);
         std::fill(&params[0], &params[arity], Type::Any(zone()));
         return Type::Function(Type::Any(zone()), arity, params, zone());
       }
     }
   } else if (value->IsJSTypedArray()) {
     switch (JSTypedArray::cast(*value)->type()) {
 #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) \
   case kExternal##Type##Array:                          \
     return typer_->cache_->Get(k##Type##Array);
       TYPED_ARRAYS(TYPED_ARRAY_CASE)
 #undef TYPED_ARRAY_CASE
     }
   }
   return Type::Constant(value, zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8