[Interpreter] Adds support for wide variant of load/store lookup slots.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index a9b12eaed01a19b5c8423ece72f1516205429f95..5044691029bc52d7fcc68e2a48ca51cb9c89e4a0 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -455,6 +455,26 @@ void Interpreter::DoLdaLookupSlotInsideTypeof(
 }
 
 
+// LdaLookupSlotWide <name_index>
+//
+// Lookup the object with the name in constant pool entry |name_index|
+// dynamically.
+void Interpreter::DoLdaLookupSlotWide(
+    compiler::InterpreterAssembler* assembler) {
+  DoLdaLookupSlot(assembler);
+}
+
+
+// LdaLookupSlotInsideTypeofWide <name_index>
+//
+// Lookup the object with the name in constant pool entry |name_index|
+// dynamically without causing a NoReferenceError.
+void Interpreter::DoLdaLookupSlotInsideTypeofWide(
+    compiler::InterpreterAssembler* assembler) {
+  DoLdaLookupSlotInsideTypeof(assembler);
+}
+
+
 void Interpreter::DoStoreLookupSlot(LanguageMode language_mode,
                                     compiler::InterpreterAssembler* assembler) {
   Node* value = __ GetAccumulator();
@@ -489,6 +509,26 @@ void Interpreter::DoStaLookupSlotStrict(
 }
 
 
+// StaLookupSlotSloppyWide <name_index>
+//
+// Store the object in accumulator to the object with the name in constant
+// pool entry |name_index| in sloppy mode.
+void Interpreter::DoStaLookupSlotSloppyWide(
+    compiler::InterpreterAssembler* assembler) {
+  DoStaLookupSlotSloppy(assembler);
+}
+
+
+// StaLookupSlotStrictWide <name_index>
+//
+// Store the object in accumulator to the object with the name in constant
+// pool entry |name_index| in strict mode.
+void Interpreter::DoStaLookupSlotStrictWide(
+    compiler::InterpreterAssembler* assembler) {
+  DoStaLookupSlotStrict(assembler);
+}
+
+
 void Interpreter::DoLoadIC(Callable ic,
                            compiler::InterpreterAssembler* assembler) {
   Node* code_target = __ HeapConstant(ic.code());