[tests] Add specifier of implicit ints in tests

tests/float/parse.i

tests/impact/loop2.i

tests/misc/oracle/audit-out.json

tests/pdg/bts1194.c

tests/scope/bts971.c

tests/syntax/built.i

tests/syntax/exit.c

tests/syntax/implicit-int.i

tests/syntax/inline_def_1.i

tests/syntax/inline_def_2.i

tests/syntax/inline_def_bad_1.i

tests/syntax/inline_def_bad_2.i

tests/syntax/merge_inline_1.c

tests/syntax/oracle/implicit-int.res.oracle

tests/syntax/static_formals.h

tests/syntax/unroll_labels.i

tests/value/alias.i

tests/value/bitfield.i

tests/value/bitwise_reduction.i

tests/value/builtins_split.c