Remove some dead code from full-codegen on all platforms.

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index ac3f815f5bc511e184bc865f9f6368f455eaac84..dee4cafd533c5f818039c71786b327db65dabfd5 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -712,24 +712,24 @@ void FullCodeGenerator::EmitDeclaration(Variable* variable,
     }
 
   } else if (prop != NULL) {
-    if (function != NULL || mode == Variable::CONST) {
-      // We are declaring a function or constant that rewrites to a
-      // property.  Use (keyed) IC to set the initial value.  We cannot
-      // visit the rewrite because it's shared and we risk recording
-      // duplicate AST IDs for bailouts from optimized code.
+    // A const declaration aliasing a parameter is a illegal redeclaration.
+    ASSERT(mode != Variable::CONST);
+    // Do nothing for a regular var declaration.
+    // Store the function for a function declaration.
+    if (function != NULL) {
+      // We are declaring a function that rewrites to a property.
+      // Use (keyed) IC to set the initial value.  We cannot visit the
+      // rewrite because it's shared and we risk recording duplicate AST
+      // IDs for bailouts from optimized code.
       ASSERT(prop->obj()->AsVariableProxy() != NULL);
       { AccumulatorValueContext for_object(this);
         EmitVariableLoad(prop->obj()->AsVariableProxy()->var());
       }
 
-      if (function != NULL) {
-        __ push(eax);
-        VisitForAccumulatorValue(function);
-        __ pop(edx);
-      } else {
-        __ mov(edx, eax);
-        __ mov(eax, isolate()->factory()->the_hole_value());
-      }
+      __ push(eax);
+      VisitForAccumulatorValue(function);
+      __ pop(edx);
+
       ASSERT(prop->key()->AsLiteral() != NULL &&
              prop->key()->AsLiteral()->handle()->IsSmi());
       __ SafeSet(ecx, Immediate(prop->key()->AsLiteral()->handle()));