[wasm] Fix receiver conversion for WASM->JS calls.

test/mjsunit/wasm/import-table.js

Index: test/mjsunit/wasm/import-table.js
diff --git a/test/mjsunit/wasm/import-table.js b/test/mjsunit/wasm/import-table.js
index ebba0402bba569d40e3799c9a53a8e6c14e67e2f..8680addf615566166bc15a4afc470957b99fa9e4 100644
--- a/test/mjsunit/wasm/import-table.js
+++ b/test/mjsunit/wasm/import-table.js
@@ -45,7 +45,7 @@ function FOREIGN_SUB(a, b) {
 function check_FOREIGN_SUB(r, a, b) {
     assertEquals(a - b | 0, r);
     assertTrue(was_called);
-//    assertEquals(global, params[0]);  // sloppy mode
+    assertEquals(global, params[0]);  // sloppy mode
     assertEquals(a, params[1]);
     assertEquals(b, params[2]);
     was_called = false;
@@ -68,7 +68,7 @@ function FOREIGN_ABCD(a, b, c, d) {
 function check_FOREIGN_ABCD(r, a, b) {
     assertEquals((a * b * 6) | 0, r);
     assertTrue(was_called);
-//    assertEquals(global, params[0]);  // sloppy mode.
+    assertEquals(global, params[0]);  // sloppy mode.
     assertEquals(a, params[1]);
     assertEquals(b, params[2]);
     assertEquals(undefined, params[3]);