getObject on list fails if offset is out of bounds

[annagrin]

Currently getObject on list with an offset greater or equal than the list length fails with a JS stack trace from in debugger.getProperties when we call the sublist:

[FINE] AppInspector: getObject 8027075255564578089.1.77 failed:
Unexpected error from chrome devtools:
text: Uncaught
exception:
  preview: null
  description: Error: RangeError (start): Invalid value: Not in inclusive range 0..1001: 1002
    at Object.throw_ [as throw] (http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js:4745:11)
    at [dartx.sublist] (http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js:13063:21)
    at Object._checkAndCall (http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js:4948:16)
    at Object.callMethod (http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js:4991:17)
    at Object.dsendRepl (http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js:5000:17)
    at Array.<anonymous> (<anonymous>:9:29)
  type: object
  value: null
attempted JS eval: `        function (offset, count, end) {
          const sdk = require("dart_sdk");
          if (sdk.core.Map.is(this)) {
            const entries = sdk.dart.dload(this, "entries");
            const skipped = sdk.dart.dsend(entries, "skip", [offset])
            const taken = sdk.dart.dsend(skipped, "take", [count]);
            return sdk.dart.dsend(taken, "toList", []);
          } else  if (sdk.core.List.is(this)) {
            return sdk.dart.dsendRepl(this, "sublist", [offset, end]);
          } else {
            return this;
          }
        }
        `
stack trace:
throw_()          http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js 4744:10
[dartx.sublist]() http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js 13062:20
_checkAndCall()   http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js 4947:15
callMethod()      http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js 4990:16
dsendRepl()       http://localhost:52339/packages/build_web_compilers/src/dev_compiler/dart_sdk.js 4999:16
()                 8:28
:
#0      handleErrorIfPresent (package:dwds/src/utilities/server.dart:86:5)
#1      getResultOrHandleError (package:dwds/src/utilities/server.dart:98:3)
#2      AppInspector.jsCallFunctionOn (package:dwds/src/debugging/inspector.dart:250:9)
<asynchronous suspension>
#3      Debugger._subRange (package:dwds/src/debugging/debugger.dart:466:12)
<asynchronous suspension>
#4      Debugger.getProperties (package:dwds/src/debugging/debugger.dart:507:21)
<asynchronous suspension>
#5      InstanceHelper._listElements (package:dwds/src/debugging/instance.dart:315:45)
<asynchronous suspension>
#6      InstanceHelper._listInstanceFor (package:dwds/src/debugging/instance.dart:292:22)