Reverting 2753.

src/objects.cc

Index: src/objects.cc
===================================================================
--- src/objects.cc	(revision 2753)
+++ src/objects.cc	(working copy)
@@ -4800,6 +4800,7 @@
     bool only_this_property_assignments,
     bool only_simple_this_property_assignments,
     FixedArray* assignments) {
+  ASSERT(this_property_assignments()->IsUndefined());
   set_compiler_hints(BooleanBit::set(compiler_hints(),
                                      kHasOnlyThisPropertyAssignments,
                                      only_this_property_assignments));
@@ -4811,18 +4812,6 @@
 }
 
 
-void SharedFunctionInfo::ClearThisPropertyAssignmentsInfo() {
-  set_compiler_hints(BooleanBit::set(compiler_hints(),
-                                     kHasOnlyThisPropertyAssignments,
-                                     false));
-  set_compiler_hints(BooleanBit::set(compiler_hints(),
-                                     kHasOnlySimpleThisPropertyAssignments,
-                                     false));
-  set_this_property_assignments(Heap::undefined_value());
-  set_this_property_assignments_count(0);
-}
-
-
 String* SharedFunctionInfo::GetThisPropertyAssignmentName(int index) {
   Object* obj = this_property_assignments();
   ASSERT(obj->IsFixedArray());
@@ -4833,32 +4822,6 @@
 }
 
 
-bool SharedFunctionInfo::IsThisPropertyAssignmentArgument(int index) {
-  Object* obj = this_property_assignments();
-  ASSERT(obj->IsFixedArray());
-  ASSERT(index < this_property_assignments_count());
-  obj = FixedArray::cast(obj)->get(index * 3 + 1);
-  return Smi::cast(obj)->value() != -1;
-}
-
-
-int SharedFunctionInfo::GetThisPropertyAssignmentArgument(int index) {
-  ASSERT(IsThisPropertyAssignmentArgument(index));
-  Object* obj =
-      FixedArray::cast(this_property_assignments())->get(index * 3 + 1);
-  return Smi::cast(obj)->value();
-}
-
-
-Object* SharedFunctionInfo::GetThisPropertyAssignmentConstant(int index) {
-  ASSERT(!IsThisPropertyAssignmentArgument(index));
-  Object* obj =
-      FixedArray::cast(this_property_assignments())->get(index * 3 + 2);
-  return obj;
-}
-
-
-
 // Support function for printing the source code to a StringStream
 // without any allocation in the heap.
 void SharedFunctionInfo::SourceCodePrint(StringStream* accumulator,