Layout Test svg/animations/animate-end-attribute-numeric-precision.html is flaky

[Truitt Savell]

The following layout test is flaky on Mac wk1 and iOS wk2

svg/animations/animate-end-attribute-numeric-precision.html

Probable cause:

Unknown. History shows this test failing for a while across multiple platforms. 

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=svg%2Fanimations%2Fanimate-end-attribute-numeric-precision.html

Diff:
--- /Volumes/Data/slave/sierra-debug-tests-wk1/build/layout-test-results/svg/animations/animate-end-attribute-numeric-precision-expected.txt
+++ /Volumes/Data/slave/sierra-debug-tests-wk1/build/layout-test-results/svg/animations/animate-end-attribute-numeric-precision-actual.txt
@@ -7,7 +7,7 @@
 
 PASS rect.x.animVal.value is 100
 PASS rect.x.baseVal.value is 100
-PASS rect.x.animVal.value is 300
+FAIL rect.x.animVal.value should be close to 300. Was 100.
 PASS rect.x.baseVal.value is 100
 PASS successfullyParsed is true

[Truitt Savell]

I was able to reproduce the failure by running: 
run-webkit-tests svg/animations/animate-end-attribute-numeric-precision.html --iterations 1000 -f -1

I saw intermittent failure all the way back to r233000. This test seems to have been flakey for a while.

[Truitt Savell]

Marked test as flakey in https://trac.webkit.org/changeset/235468/webkit

[Ahmad Saleem]

I am trying to remove this test in favor of WPT here: https://github.com/WebKit/WebKit/pull/22281

WPT variant passes and don't have any platform specific expectation.

Once landed, I will mark this as 'RESOLVED CONFIGURATION CHANGED'. Refer to 'See Also'.