(perl #129961) code cleanup for clang -Weverything support

This patch simplifies two bits of code that I came across while
working on supporting the clang -Weverything flag.

The first, in Perl_validate_proto, removes unnecessary variable
initialization if proto of NULL is passed.

The second, in S_scan_const, rearranges some code and #ifdefs so that
the convert_unicode and real_range_max variables are only declared
if EBCDIC is set.  This lets us no longer have to unnecessarily set
useless variables to make the compiler happy, and it saves us from some
unnecessary checks on "if (convert_unicode)".  One of the comments says
"(Compilers should optimize this out for non-EBCDIC)", but now the
compiler won't even see these unnecessary variables or tests.

0 files changed, 0 insertions, 0 deletions