This fixes the math.__isnanl, math.powl, and math.fdiml tests.
Change-Id: I0086e4a1a82d0e2708fa07cf580a6d9778c548f2
int __fpclassifyl(long double a1) { return __fpclassifyd(a1); }
int __isfinitel(long double a1) { return __isfinite(a1); }
int __isinfl(long double a1) { return __isinf(a1); }
-int __isnanl(long double a1) { return isnan(a1); }
+int __isnanl(long double a1) { return (isnan)(a1); }
int __isnormall(long double a1) { return __isnormal(a1); }
int __signbitl(long double a1) { return __signbit(a1); }