Bug 1883202 - Set property_error_message_fix pref in tests for it. r=arai

We now use the same default value for this pref in the shell as in the browser
and this pref is disabled on beta and release.

Differential Revision: https://phabricator.services.mozilla.com/D203420

js/src/jit-test/tests/basic/property-error-message-fix-disabled.js

@@ -1,4 +1,4 @@
-// |jit-test| --disable-property-error-message-fix; skip-if: getBuildConfiguration('pbl')
+// |jit-test| --setpref=property_error_message_fix=false; skip-if: getBuildConfiguration('pbl')
 
 function check(f, message) {
   let caught = false;

js/src/jit-test/tests/basic/property-error-message-fix.js

@@ -1,4 +1,4 @@
-// |jit-test| skip-if: getBuildConfiguration('pbl')
+// |jit-test| --setpref=property_error_message_fix=true; skip-if: getBuildConfiguration('pbl')
 
 function check(f, message) {
   let caught = false;

js/src/jit-test/tests/ion/bug1568397.js

@@ -1,4 +1,4 @@
-// |jit-test| error:TypeError: can't access property
+// |jit-test| --setpref=property_error_message_fix=true; error:TypeError: can't access property "x"
 let obj = {x: 1};
 obj.x = 1.1;