Fixup: Add object coercible tests for trim(start/End)

test/built-ins/String/prototype/trimEnd/this-value-not-obj-coercible.js

@@ -2,10 +2,11 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-esid: pending
+esid: sec-string.prototype.trimEnd
 description: The "this" value must be object-coercible
 info: |
   1. Let O be ? RequireObjectCoercible(this value).
+features: [string-trimming]
 ---*/
 
 var trimEnd = String.prototype.trimEnd;

test/built-ins/String/prototype/trimStart/this-value-not-obj-coercible.js

@@ -2,10 +2,11 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-esid: pending
+esid: sec-string.prototype.trimStart
 description: The "this" value must be object-coercible
 info: |
   1. Let O be ? RequireObjectCoercible(this value).
+features: [string-trimming]
 ---*/
 
 var trimStart = String.prototype.trimStart;