Issue 2950 - Allow switch on enum of string base type.

[ghost]

http://d.puremagic.com/issues/show_bug.cgi?id=2950

This is only a partial fix since this won't compile with the -g switch. When EnumDeclaration::toDebug is called, it calls cv4_Denum which expects the enum to have an integer base type. It tries to call toInteger method on the enum declaration.

cv4_Denum is a very complicated function, I don't know how to implement a fix there.

[WalterBright]

The trouble with adding a separate file for each test is it tremendously increases the time necessary to run the test suite. Please instead add it to one of the other test files, which adds very little to the time.

[dnadlinger]

Having too few test files can also be problematic, though, as it decreases the granularity of the status reports if the test suite does not pass. For DMD, this might not be as big a concern, as the test suite is developed in synchrony with it anyway. If you are working on an alternative implementation/port, though, it can be quite annoying if a big test case fails, and you can't quickly judge the scope of the breakage. I'm not sure what the best compromise here is.

[WalterBright]

Currently, the time it takes the full test suite to run is a significant bottleneck.

I've been doing this style for a long time, and having a few files filled with large numbers of tests works out pretty good.

[ghost]

Moved the test-case into testenum.d.

[ghost]

Rebased, waiting for review and green.

[ghost]

Superseded by #2080.

[andralex]

Apologies for the duplicated work!

[ghost]

Not necessary, his pull was better :) (and the -g switch works with his pull, although I'm not sure whether it's related to the pull).