trying to fix wasm heap

doc/notes.txt

@@ -44,6 +44,8 @@ TODO:
 - base-36 encoding for LZG
 - disassembler for uploaded ROMs
 - show tool-specific (readonly) include files
+- verilog debugging makes it slow
+- fix VCS mame
 
 
 WEB WORKER FORMAT

package-lock.json

@@ -253,6 +253,11 @@
       "integrity": "sha1-k0EP0hsAlzUVH4howvJx80J+I/0=",
       "dev": true
     },
+    "heapdump": {
+      "version": "0.3.9",
+      "resolved": "https://registry.npmjs.org/heapdump/-/heapdump-0.3.9.tgz",
+      "integrity": "sha1-A8dOsN9dZ74Jgug0KbqcnSs7f3g="
+    },
     "hoek": {
       "version": "0.9.1",
       "resolved": "https://registry.npmjs.org/hoek/-/hoek-0.9.1.tgz",

package.json

@@ -4,6 +4,7 @@
   "author": "Steven Hugg",
   "dependencies": {},
   "devDependencies": {
+    "heapdump": "^0.3.9",
     "typescript": "^2.9.2",
     "@types/jquery": "^2.x",
     "@types/bootstrap": "^3.x",

test/cli/testworker.js

@@ -2,6 +2,7 @@
 var assert = require('assert');
 var fs = require('fs');
 var wtu = require('./workertestutils.js');
+var heapdump = require('heapdump');
 
 // TODO: why memory leak?
 CACHE_WASM_MODULES = false;
@@ -54,9 +55,10 @@ function doBuild(msgs, callback, outlen, nlines, nerrors) {
           }
         }
       }
-      if (--msgcount == 0)
+      if (--msgcount == 0) {
         callback(null, msg);
-      else
+        //heapdump.writeSnapshot();
+      } else
         console.log(msgcount + ' msgs left');
     };
     global.onmessage({data:{reset:true}});