silence -Wparentheses-equality

Clang has taken it upon itself to warn when an equality is wrapped in
double parentheses, e.g.

    ((foo == bar))

Which is a bit dumb, as any code along the lines of

    #define isBAR (foo == BAR)
    if (isBAR) {}

will trigger the warning.

This commit shuts clang up by putting in a harmless cast:

    #define isBAR cBOOL(foo == BAR)

1 files changed, 2 insertions, 2 deletions

diff --git a/cop.h b/cop.h
index dfb4a0045e..1795dc3cbf 100644
--- a/cop.h
+++ b/cop.h
@@ -1055,8 +1055,8 @@ typedef struct stackinfo PERL_SI;
 	}								\
     } STMT_END
 
-#define IN_PERL_COMPILETIME	(PL_curcop == &PL_compiling)
-#define IN_PERL_RUNTIME		(PL_curcop != &PL_compiling)
+#define IN_PERL_COMPILETIME	cBOOL(PL_curcop == &PL_compiling)
+#define IN_PERL_RUNTIME		cBOOL(PL_curcop != &PL_compiling)