[destructuring] Implement parameter pattern matching.

src/pattern-rewriter.cc

Index: src/pattern-rewriter.cc
diff --git a/src/pattern-rewriter.cc b/src/pattern-rewriter.cc
index a487a10c3597fc51155827b2bacc2a37c050b4a7..6969cf214ed70034fce8f58a737724ab4b600700 100644
--- a/src/pattern-rewriter.cc
+++ b/src/pattern-rewriter.cc
@@ -53,7 +53,8 @@ void Parser::PatternRewriter::VisitVariableProxy(VariableProxy* pattern) {
   Declaration* declaration = factory()->NewVariableDeclaration(
       proxy, descriptor_->mode, descriptor_->scope,
       descriptor_->declaration_pos);
-  Variable* var = parser->Declare(declaration, descriptor_->mode != VAR, ok_);
+  Variable* var = parser->Declare(declaration, descriptor_->declaration_kind,
+                                  descriptor_->mode != VAR, ok_);
   if (!*ok_) return;
   DCHECK_NOT_NULL(var);
   DCHECK(!proxy->is_resolved() || proxy->var() == var);