[do not merge] Test suite with mimalloc I noticed that mimalloc hangs when building some projects, so want to try and see if any Emscripten tests can help narrow it down by changing the default.

diff --git a/src/settings.js b/src/settings.js
index 0632832..f0732a6 100644
--- a/src/settings.js
+++ b/src/settings.js

@@ -129,7 +129,7 @@
 // the extra security checks it does (such as noticing metadata corruption in
 // its internal data structures, which emmalloc does not do).
 // [link]
-var MALLOC = "dlmalloc";
+var MALLOC = "mimalloc";
 
 // If 1, then when malloc would fail we abort(). This is nonstandard behavior,
 // but makes sense for the web since we have a fixed amount of memory that