Band-aid fix for PCRE to compile for ppc64 and x86_64 now that
        we use -Wshorten-64-to-32. Adds an INT_CAST macro that ASSERTs
        the value <= INT_MAX.

        I filed <rdar://problem/4712064> to track the need to verify
        PCRE's 64-bit compliance.

        * pcre/pcre_compile.c:
        (complete_callout):
        (compile_branch):
        (compile_regex):
        (pcre_compile2):
        * pcre/pcre_exec.c:
        (match):
        (pcre_exec):
        * pcre/pcre_get.c:
        (pcre_get_substring_list):
        * pcre/pcre_internal.h:
        * pcre/pcre_tables.c:
        * pcre/pcre_try_flipped.c:
        (_pcre_try_flipped):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@16155 268f45cc-cd09-0410-ab3c-d52691b4dbfc