[destructuring] Implement parameter pattern matching.

src/prettyprinter.cc

 // Copyright 2012 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 <stdarg.h>
 
 #include "src/v8.h"
 
 #include "src/ast-value-factory.h"
 #include "src/base/platform/platform.h"
@@ skipping 975 matching lines @@
 
 void PrettyPrinter::PrintLiteral(const AstRawString* value, bool quote) {
   PrintLiteral(value->string(), quote);
 }
 
 
 void PrettyPrinter::PrintParameters(Scope* scope) {
   Print("(");
   for (int i = 0; i < scope->num_parameters(); i++) {
     if (i  > 0) Print(", ");
-    PrintLiteral(scope->parameter(i)->name(), false);
+    PrintLiteral(scope->parameter_var(i)->name(), false);
   }
   Print(")");
 }
 
 
 void PrettyPrinter::PrintDeclarations(ZoneList<Declaration*>* declarations) {
   for (int i = 0; i < declarations->length(); i++) {
     if (i > 0) Print(" ");
     Visit(declarations->at(i));
   }
@@ skipping 110 matching lines @@
       Visit(declarations->at(i));
     }
   }
 }
 
 
 void AstPrinter::PrintParameters(Scope* scope) {
   if (scope->num_parameters() > 0) {
     IndentedScope indent(this, "PARAMS");
     for (int i = 0; i < scope->num_parameters(); i++) {
-      PrintLiteralWithModeIndented("VAR", scope->parameter(i),
-                                   scope->parameter(i)->name());
+      PrintLiteralWithModeIndented("VAR", scope->parameter_var(i),
+                                   scope->parameter_var(i)->name());
     }
   }
 }
 
 
 void AstPrinter::PrintStatements(ZoneList<Statement*>* statements) {
   for (int i = 0; i < statements->length(); i++) {
     Visit(statements->at(i));
   }
 }
@@ skipping 403 matching lines @@
 
 void AstPrinter::VisitSuperCallReference(SuperCallReference* node) {
   IndentedScope indent(this, "SUPER-CALL-REFERENCE");
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8