[destructuring] More tests for object literal pattern

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index 4d4dd222c529d704f8284613c8f6b0ec17269656..1b145106c9b75ce1f0ea5dc09c21423ec0a86668 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -1010,6 +1010,9 @@ class Parser : public ParserBase<ParserTraits> {
     }
     bool inside_with() const { return descriptor_->parser->inside_with(); }
     Zone* zone() const { return descriptor_->parser->zone(); }
+    Scope* TemporaryDeclarationScope() const {
+      return descriptor_->parser->scope_->DeclarationScope();
+    }
 
     Expression* pattern_;
     int initializer_position_;
@@ -1098,6 +1101,7 @@ class Parser : public ParserBase<ParserTraits> {
   IterationStatement* LookupContinueTarget(const AstRawString* label, bool* ok);
 
   void AddAssertIsConstruct(ZoneList<Statement*>* body, int pos);
+  Statement* BuildAssertIsCoercible(Variable* var);
 
   // Factory methods.
   FunctionLiteral* DefaultConstructor(bool call_super, Scope* scope, int pos,