Function sub

deps/v8/test/mjsunit/wasm/indirect-tables.js:528–528

(a, b)

  let mul = (a, b) => a * b;
  let add = (a, b) => a + b;
  let sub = (a, b) => a - b;

  // Test 1 to 3 segments in the elements section.
  // segment 1 sets [1, 2] to mul,