Bug 1074911 - Replace JS_ASSERT_IF by MOZ_ASSERT_IF. r=jorendorff

Apply the following script

sed -i '
   /JS_ASSERT_IF(/ {
     s/JS_ASSERT_IF(/MOZ_ASSERT_IF(/;
     :b;
     s/ \\$/\\/;
     /;/ { p; d; };
     n;
     s/^/ /;
     b b;
  };
  s/JS_ASSERT_IF (/MOZ_ASSERT_IF(/;
'

js/src/jsdate.cpp

@@ -184,7 +184,7 @@ DaysInFebruary(double year)
 static inline double
 DayWithinYear(double t, double year)
 {
-    JS_ASSERT_IF(IsFinite(t), YearFromTime(t) == year);
+    MOZ_ASSERT_IF(IsFinite(t), YearFromTime(t) == year);
     return Day(t) - DayFromYear(year);
 }