Don't warn passing int * through int [static ...]
Decay-casts mirror their operand's location
Some test fixes
Correct where-location on labels
Update forward-label locations when we find them
&&-expressions search for labels
symtab_label_find() creates forward-labels if not found
layout_normalise.pl accounts for leading-underscore
Fixed duplicate symbol gen for strings-in-if/for/etc
Tidied up code-gen calls for block decls/prototypes