Demonstrate both Ember.A() and ManagedArrays trigger rerendering assertions

[igorT]

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Performance Report for 748b068bccd65967931e6eeaa2a4ee827ecaf483

Scenario - materializing: ⚠️ Performance regressed

⚠️ duration phase estimated regression +66ms [8ms to 121ms] OR +0.96% [0.12% to 1.75%] ☑️ Phase [navigationStart] => [start-loading] phase no difference [-6ms to 7ms] ☑️ Phase [start-loading] => [pushed-payload] phase no difference [-27ms to 37ms] ⚠️ Phase [pushed-payload] => [end-loading] phase estimated regression +59ms [30ms to 90ms] OR +2.17% [1.09% to 3.29%] ☑️ Phase [end-loading] => [Test End] phase no difference [-1ms to 1ms]

Scenario - rendering: ☑️ Performance is stable

☑️ duration phase no difference [-27ms to 8ms] ☑️ Phase [navigationStart] => [start-loading] phase no difference [-8ms to 3ms] ✅ Phase [start-loading] => [pushed-payload] phase estimated improvement -2ms [-4ms to -1ms] OR -2.24% [-3.82% to -0.58%] ☑️ Phase [pushed-payload] => [end-loading] phase no difference [0ms to 0ms] ☑️ Phase [end-loading] => [Test End] phase no difference [-17ms to 10ms]