Bug 673631 - Clean up probes and register (almost) all profiler control entry points in JS_DefineProfilingFunctions (r=luke,waldo,jst)

Previously, JS_DefineProfilingFunctions only defined a very basic set of
functions (startProfiling and stopProfiling), and various scattered places
added more specific ones (start/stop vtune, dumpProfile, etc.) This patch makes
jsdbgapi do all of it, so that all users get the same set.

Also rename JS_DumpProfile -> JS_DumpBytecode to avoid name conflict. The
bytecode dumps are how the counters ("profiles") are displayed, so the
DumpProfile name was bogus anyway.

ipc/testshell/XPCShellEnvironment.cpp

@@ -558,11 +558,6 @@ JSFunctionSpec gGlobalFunctions[] =
     {"clear",           Clear,          1,0},
 #ifdef DEBUG
     {"dumpHeap",        DumpHeap,       5,0},
-#endif
-#ifdef MOZ_CALLGRIND
-    {"startCallgrind",  js_StartCallgrind,  0,0},
-    {"stopCallgrind",   js_StopCallgrind,   0,0},
-    {"dumpCallgrind",   js_DumpCallgrind,   1,0},
 #endif
     {nsnull,nsnull,0,0}
 };