[ast][parsing] Variable declaration cleanups.

src/parsing/pattern-rewriter.cc

Index: src/parsing/pattern-rewriter.cc
diff --git a/src/parsing/pattern-rewriter.cc b/src/parsing/pattern-rewriter.cc
index 30d521dfa76c47616cbdaf9ecf89399881263795..1ea735bd5b7288dde13b275af283ff2f1735751f 100644
--- a/src/parsing/pattern-rewriter.cc
+++ b/src/parsing/pattern-rewriter.cc
@@ -151,15 +151,16 @@ void Parser::PatternRewriter::VisitVariableProxy(VariableProxy* pattern) {
   Declaration* declaration = factory()->NewVariableDeclaration(
       proxy, descriptor_->mode, descriptor_->scope,
       descriptor_->declaration_pos);
+  InitializationFlag init =
+      parser_->DefaultInitializationFlag(descriptor_->mode);
   Variable* var =
-      parser_->Declare(declaration, descriptor_->declaration_kind,
+      parser_->Declare(declaration, descriptor_->declaration_kind, init,
                        descriptor_->mode != VAR, ok_, descriptor_->hoist_scope);
   if (!*ok_) return;
   DCHECK_NOT_NULL(var);
   DCHECK(!proxy->is_resolved() || proxy->var() == var);
-  var->set_initializer_position(initializer_position_);
-
   DCHECK(initializer_position_ != kNoSourcePosition);
+  var->set_initializer_position(initializer_position_);
 
   Scope* declaration_scope = IsLexicalVariableMode(descriptor_->mode)
                                  ? descriptor_->scope