Make dumping of wasm code configurable, and default to false

src/config.js

@@ -24,6 +24,11 @@ var LOG_ALL_IO = false;
  */
 var LOG_PAGE_FAULTS = false;
 
+/**
+ * @const
+ */
+var DUMP_GENERATED_WASM = false;
+
 
 var LOG_LEVEL = LOG_ALL & ~LOG_PS2 & ~LOG_PIT & ~LOG_VIRTIO & ~LOG_9P & ~LOG_PIC &
                           ~LOG_DMA & ~LOG_SERIAL & ~LOG_NET & ~LOG_FLOPPY & ~LOG_DISK & ~LOG_VGA;

src/cpu.js

@@ -1409,7 +1409,7 @@ CPU.prototype.codegen_finalize = function(cache_index, virtual_start, start, end
 
     if(DEBUG)
     {
-        if(true && !seen_code[start])
+        if(DUMP_GENERATED_WASM && !seen_code[start])
         {
             this.debug.dump_wasm(code);