Updating tickets (#1000864, #1001000, #1001001, #1001197, #1001202, #1001211, #1001225, #1001241, #1001267, #1001288, #1001289, #1001290)

(In scala-ide:094a4007e9057dabfa4b3ec20c4f718d84d54cde) Filter out step into forwarder and default getter methods.

A general reorganization of step filters was necessary:

- made it a class instead of an object
- split functionality between the filter class and a method classifier
- split tests in unit tests (using the method classifier) and integration tests (testing the step-into
inside a debugger instance)

A separate commit makes the Scala launch delegate behave according to the spec, throwing
`CoreException` on failure. Failure to do so was making tests hang indefinitely when a debug-test
project had errors, and therefore could not be launched.

Fixed #1001288.

Branch: master

(In scala-ide:094a4007e9057dabfa4b3ec20c4f718d84d54cde) Filter out step into forwarder and default getter methods.

A general reorganization of step filters was necessary:

- made it a class instead of an object
- split functionality between the filter class and a method classifier
- split tests in unit tests (using the method classifier) and integration tests (testing the step-into
inside a debugger instance)

A separate commit makes the Scala launch delegate behave according to the spec, throwing
`CoreException` on failure. Failure to do so was making tests hang indefinitely when a debug-test
project had errors, and therefore could not be launched.

Fixed #1001288.

Branch: platform/juno

Updating tickets (#1001233, #1001268, #1001297, #1001308, #1001281, #1001287, #1001288, #1001291, #1001299, #1001319)