Test 020: Testing a simple tag.

Start tag (no parms), some text, end tag:

Start tag called, parms="" some text End tag called

Start tag (some parms), some text, end tag:

Start tag called, parms="some parms" some text End tag called

Auto-end tag:

Start tag called, parms="" End tag called

Unmatched tag (should give TWO errors: one now, and one at end-of file):

REXXTAGS: compilation error in /test-suite/test020.rsp at line 18: </test:anerror> is no matching end-tag for <test:test020> and was discarded.

Start tag called, parms="" some text

REXXTAGS: compilation error in /test-suite/test020.rsp at line 21: Tag <test:test020> not closed.