Optimize various forms of slice.call(arguments, ...)

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index ef55761e169bb6dd75ca59193355134f73c1f6d1..a0da45a4d6629cc7bb1af414f62dbc8aff0ca54f 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -7038,7 +7038,9 @@ class Script: public Struct {
   V(Array.prototype, push, ArrayPush)                 \
   V(Array.prototype, pop, ArrayPop)                   \
   V(Array.prototype, shift, ArrayShift)               \
+  V(Array.prototype, slice, ArraySlice)               \
   V(Function.prototype, apply, FunctionApply)         \
+  V(Function.prototype, call, FunctionCall)           \
   V(String.prototype, charCodeAt, StringCharCodeAt)   \
   V(String.prototype, charAt, StringCharAt)           \
   V(String, fromCharCode, StringFromCharCode)         \
@@ -7064,7 +7066,9 @@ enum BuiltinFunctionId {
   // list of math functions.
   kMathPowHalf,
   // Installed only on --harmony-maths.
-  kMathClz32
+  kMathClz32,
+
+  kBuiltinsLength
 };
 
 
@@ -7221,6 +7225,12 @@ class SharedFunctionInfo: public HeapObject {
   inline int compiler_hints();
   inline void set_compiler_hints(int value);
 
+  // Whether the function should use optimistic optimizations that
+  // cannot be easily ensured to work due to e.g. lack of type feedback
+  inline bool use_optimistic_optimizations();
+  inline void disable_optimistic_optimizations();
+  DECL_BOOLEAN_ACCESSORS(optimistic_optimizations)
+
   inline int ast_node_count();
   inline void set_ast_node_count(int count);
 
@@ -7505,6 +7515,7 @@ class SharedFunctionInfo: public HeapObject {
     kDontCache,
     kDontFlush,
     kIsGenerator,
+    kOptimisticOptimizations,
     kCompilerHintsCount  // Pseudo entry
   };