[loose parser] Make sure ImportNamespaceSpecifier always has a local property
[loose parser] Make sure ImportNamespaceSpecifier always has a local property

Issue ternjs/tern#694

MarcelGerber/acorn,mathiasbynens/acorn,Rich-Harris/acorn,mysticatea/acorn,ajaxorg/acorn,mathiasbynens/acorn,mysticatea/acorn,btmills/acorn,ternjs/acorn,btmills/acorn,TimothyGu/acorn,mysticatea/acorn,btmills/acorn,MarcelGerber/acorn,ternjs/acorn,ajaxorg/acorn,marijnh/acorn,Rich-Harris/acorn,TimothyGu/acorn,marijnh/acorn,MarcelGerber/acorn,ternjs/acorn,TimothyGu/acorn,ajaxorg/acorn,marijnh/acorn,mathiasbynens/acorn,Rich-Harris/acorn