[antlr-interest] Solution for specialStateTransition exceeding 65k

[Marcus Klimstra]

Hi,

I ran into the problem of the huge specialStateTransition bytecode size when
using many gated semantic predicates in the lexer (in all my lexer rules
actually).  After a google search I found that this is a known issue to
which there are some workarounds, but no real solutions. At first I used the
workaround to manually add local variables for the outer-class references,
but at some point even that no longer worked. Therefore I changed the Java
code generator to create seperate methods for each switch-case. This works
quite well for me, so I wanted to share it with the community. Note that I
only tested this in the lexer, since my parser has no
specialStateTransition-method at the moment. I also added annotations to
suppress the useless warnings in the generated code. A diff-file with these
changes is attached.

- Marcus
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