Pass through context information in error messages

lib/runtime/messages_widget.js

-// Generated by dart2js, the Dart to JavaScript compiler version: 1.9.0-dev.10.3.
+// Generated by dart2js, the Dart to JavaScript compiler version: 1.9.0-dev.10.10.
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 J.Tf=function(a,b){if(a.constructor==Array||typeof a=="string"||H.Xt(a,a[init.dispatchPropertyName]))if(b>>>0===b&&b<a.length)return a[b]
 return J.U6(a).p(a,b)}
 J.UN=function(a,b){if(typeof a=="number"&&typeof b=="number")return a<b
 return J.Wx(a).w(a,b)}
 J.V1=function(a,b){return J.w1(a).Rz(a,b)}
 J.Vg=function(a){return J.R(a).gVl(a)}
 J.WB=function(a,b){if(typeof a=="number"&&typeof b=="number")return a+b
 return J.Qc(a).g(a,b)}
 J.Yr=function(a,b,c){return J.rY(a).nx(a,b,c)}
 J.c1=function(a,b){return J.R(a).Wk(a,b)}
-J.cW=function(a){return J.R(a).gJ(a)}
 J.dX=function(a){return J.Wx(a).Vy(a)}
 J.i4=function(a,b){return J.w1(a).h(a,b)}
 J.i9=function(a,b){return J.w1(a).Zv(a,b)}
 J.jV=function(a,b){return J.R(a).wR(a,b)}
 J.kE=function(a,b){return J.U6(a).tg(a,b)}
 J.kH=function(a,b){return J.w1(a).aN(a,b)}
 J.kl=function(a,b){return J.w1(a).ez(a,b)}
 J.kp=function(a,b,c,d){return J.R(a).r6(a,b,c,d)}
 J.mG=function(a,b){if(a==null)return b==null
 if(typeof a!="object")return b!=null&&a===b
 return J.t(a).m(a,b)}
 J.ok=function(a,b){return J.R(a).RR(a,b)}
+J.pB=function(a,b){return J.U6(a).OY(a,b)}
 J.pO=function(a){return J.U6(a).gor(a)}
 J.pP=function(a){return J.R(a).gDD(a)}
 J.r0=function(a,b){return J.R(a).sLU(a,b)}
 J.rr=function(a){return J.rY(a).bS(a)}
 J.v1=function(a){return J.t(a).giO(a)}
 J.vU=function(a,b){if(typeof a=="number"&&typeof b=="number")return a>b
 return J.Wx(a).A(a,b)}
 J.w8=function(a){return J.R(a).gkc(a)}
 J.wS=function(a){return J.U6(a).gv(a)}
 J.xG=function(a,b){return J.R(a).aM(a,b)}
 I.uL=function(a){a.immutable$list=Array
 a.fixed$length=Array
 return a}
 C.Dt=W.zU.prototype
 C.Nm=J.G.prototype
+C.ON=J.VA.prototype
 C.jn=J.im.prototype
 C.jN=J.PE.prototype
 C.CD=J.F.prototype
 C.xB=J.E.prototype
 C.NA=H.V6.prototype
 C.t5=W.BH.prototype
 C.ZQ=J.iC.prototype
 C.vB=J.kd.prototype
 C.KZ=new H.hJ()
 C.Eq=new P.k5()
@@ skipping 285 matching lines @@
 if(!(v in y)){y[v]=1
 init.isolateTag=v
 break}}init.dispatchPropertyName=init.getIsolateTag("dispatch_record")}();(function(a){if(typeof document==="undefined"){a(null)
 return}if(document.currentScript){a(document.currentScript)
 return}var z=document.scripts
 function onLoad(b){for(var x=0;x<z.length;++x)z[x].removeEventListener("load",onLoad,false)
 a(b.target)}for(var y=0;y<z.length;++y)z[y].addEventListener("load",onLoad,false)})(function(a){init.currentScript=a
 if(typeof dartMainRunner==="function")dartMainRunner(function(b){H.Rq(F.f8(),b)},[])
 else (function(b){H.Rq(F.f8(),b)})([])})
 })()