Do not secretly write to /tmp in DEBUG builds unless your name is brendan. (Leave the basic stats code ifdef'd on for everyone though, to help avoid bitrot.) No bug, r=Waldo.

js/src/jscntxt.h

@@ -317,7 +317,7 @@ typedef struct InterpStruct InterpStruct;
 # define JS_ON_TRACE(cx)            JS_FALSE
 #endif
 
-#ifdef DEBUG
+#ifdef DEBUG_brendan
 # define JS_EVAL_CACHE_METERING     1
 # define JS_FUNCTION_METERING       1
 #endif

js/src/jsutil.h

@@ -110,11 +110,10 @@ extern JS_PUBLIC_API(void) JS_Abort(void);
 
 #ifdef DEBUG
 # define JS_BASIC_STATS 1
-# define JS_SCOPE_DEPTH_METER 1
 #endif
 
-#if defined DEBUG && !defined JS_BASIC_STATS
-# define JS_BASIC_STATS 1
+#ifdef DEBUG_brendan
+# define JS_SCOPE_DEPTH_METER 1
 #endif
 
 #ifdef JS_BASIC_STATS