Bug 719776 - Part 1 - Followup: Fix one more case of assuming ASSERT expands to an expression. r=bustage

js/src/assembler/wtf/Assertions.h

@@ -38,7 +38,10 @@
 #endif
 
 #define ASSERT(assertion) MOZ_ASSERT(assertion)
-#define ASSERT_UNUSED(variable, assertion) (((void)variable), ASSERT(assertion))
+#define ASSERT_UNUSED(variable, assertion) do { \
+    (void)variable; \
+    ASSERT(assertion); \
+} while (0)
 #define ASSERT_NOT_REACHED() MOZ_NOT_REACHED("")
 #define CRASH() MOZ_CRASH()
 #define COMPILE_ASSERT(exp, name) MOZ_STATIC_ASSERT(exp, #name)