Ensure all passing user tests are called by their appropriate suite

[niloc132]

Fixes #10258

[zbynek]

Listing all .*Test.java files, comparing with grep result for \w+Test.class in source and eliminating abstract classes + not actual tests gives this:

AbstractSequentialListTest.class - testclass itself not abstract
AtomicReferenceTest.class
BidiFormatterBaseTest.class
EmmaClassLoadingTest.class
HasAlignmentParserTest.class - no GWTTestcase
HorizontalAlignmentConstantParser_Test.class - no GWTTestcase
ImageElementTest.class
LayoutPanelTest.class
NoGenerateJsInteropExportsTest.class (@DoNotRunWith(Platform.Devel))
RPCTypeCheckArraysTest.class - no GWTTestcase
RPCTypeCheckCollectionsTest.class - no GWTTestcase
SafeHtmlBidiFormatterTest.class - no GWTTestcase
SelectionScriptJavaScriptTest.class - no GWTTestcase
StringReaderTest.class
VerticalAlignmentConstantParser_Test.class - no GWTTestcase

PR description specificaly mentions passing tests, I didn't try running any of these. The two test classes with underscore look like old versions of their conventionally named siblings and should be probably deleted.

[zbynek]

Please check if some of the classes in my previous comment could/should be enabled too.

[zbynek]

Three more:

com.google.gwt.dev.js.client.CoverageTest, com.google.gwt.validation.rebind.UtilTest, com.google.gwt.user.client.RandomTest

The last one is not really testing anything.