exported more identifiers so that Java may work with dynamic loading on Win32 (maybe)

Rev: src/array.c:1.96
Rev: src/error.c:1.64
Rev: src/errors.h:1.14
Rev: src/gc.c:1.142
Rev: src/interpret.c:1.175
Rev: src/lex.c:1.84
Rev: src/modules/Java/configure.in:1.20
Rev: src/modules/Java/jvm.c:1.29
Rev: src/object.c:1.153
Rev: src/svalue.c:1.88
Rev: src/threads.c:1.146
Rev: src/threads.h:1.106