Add a property to specify the icon of the result #2219

Job	Run time
firefox-container / DetailsTabUiTest	1m 43s
chrome-container / DetailsTabUiTest	3m 5s
firefox-container / FreeStyleConfigurationUiTest	1m 48s
chrome-container / FreeStyleConfigurationUiTest	7m 5s
firefox-container / GlobalConfigurationUiTest	1m 35s
chrome-container / GlobalConfigurationUiTest	1m 38s
firefox-container / IssuesColumnUiTest	1m 59s
chrome-container / IssuesColumnUiTest	6m 51s
firefox-container / SnippetGeneratorUiTest	7m 4s
chrome-container / SnippetGeneratorUiTest	7m 1s
firefox-container / TrendChartsUiTest	1m 56s
chrome-container / TrendChartsUiTest	7m 5s
firefox-container / WarningsPluginUiTest	1m 37s
chrome-container / WarningsPluginUiTest	3m 2s
firefox-container / SmokeTests	1m 35s
chrome-container / SmokeTests	6m 12s
	1h 1m 16s

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