wasm2js: Don't assume that `env.abort` can always be impored. (#5049)

This import was being injected and then used to implement trapping.
Rather than injecting an import that doesn't exist in the original
module we instead use the existing mechanism to implement this as
an internal helper.

1 files changed, 2 insertions, 3 deletions

diff --git a/test/wasm2js/empty_export.2asm.js b/test/wasm2js/empty_export.2asm.js
index 8ecf44c0b..eb162b810 100644
--- a/test/wasm2js/empty_export.2asm.js
+++ b/test/wasm2js/empty_export.2asm.js
@@ -11,7 +11,6 @@ function asmFunc(importObject) {
  var Math_ceil = Math.ceil;
  var Math_trunc = Math.trunc;
  var Math_sqrt = Math.sqrt;
- var abort = env.abort;
  var nan = NaN;
  var infinity = Infinity;
  function foo() {
@@ -23,6 +22,6 @@ function asmFunc(importObject) {
  };
 }
 
-var retasmFunc = asmFunc(  { abort: function() { throw new Error('abort'); }
-  });
+var retasmFunc = asmFunc({
+});
 export var $ = retasmFunc.$;