* include/hbcomp.h
+ Added:
#define VU_NOT_USED 0
#define VU_INITIALIZED 1
#define VU_USED 2
* source/compiler/harbour.c
* Modified refrences to pVar->iUsed to use new VU_* constants.
* source/compiler/hbpcode.c
* Enhanced hb_compStrongType() to check and set pVar->iUsed with new VU_*constants.
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