Patch: fix gcj deprecation support

[Eric Blake]

Have you run the Jacks tests on deprecation in 
jvms/class-file-format/attributes/deprecated-attribute?  Note that Sun's 
javadoc and javac currently parse this differently; the jacks tests are 
based on javadocs behavior and there is an open bug in Sun's database to 
make javac comply.  Right now jikes gets it correct, for a reference if 
you need it.

Tom Tromey wrote:
> Anthony recently noticed that we weren't emitting deprecation
> information in our .class files.
> 
> This patch fixes the problem.  It fixes bugs in recognizing
> @deprecated in the javadoc, and it changes the bytecode generator to
> emit Deprecated attributes for methods, fields, and classes.
> 
> I tested this on various test cases here.  I haven't checked in any
> new test cases as there is no need -- our nightly japi comparisons
> will quickly show any problems here.  (That is how Anthony discovered
> this in the first place.)
-- 
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Eric Blake             ebb9@email.byu.edu
   BYU student, free software programmer