Make Range.detach() a no-op

Source/core/editing/TextIteratorTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 471 matching lines @@
 
     EXPECT_EQ(expectedTextChunks, iterate(TextIteratorEntersAuthorShadowRoots));
 }
 
 TEST_F(TextIteratorTest, FindPlainTextInvalidTarget)
 {
     static const char* bodyContent = "<div>foo bar test</div>";
     setBodyInnerHTML(bodyContent);
     RefPtrWillBeRawPtr<Range> range = getBodyRange();
 
-    RefPtrWillBeRawPtr<Range> expectedRange = range->cloneRange(ASSERT_NO_EXCEPTION);
-    expectedRange->collapse(false, ASSERT_NO_EXCEPTION);
+    RefPtrWillBeRawPtr<Range> expectedRange = range->cloneRange();
+    expectedRange->collapse(false);
 
     // A lone lead surrogate (0xDA0A) example taken from fuzz-58.
     static const UChar invalid1[] = {
         0x1461u, 0x2130u, 0x129bu, 0xd711u, 0xd6feu, 0xccadu, 0x7064u,
         0xd6a0u, 0x4e3bu, 0x03abu, 0x17dcu, 0xb8b7u, 0xbf55u, 0xfca0u,
         0x07fau, 0x0427u, 0xda0au, 0
     };
 
     // A lone trailing surrogate (U+DC01).
     static const UChar invalid2[] = {
         0x1461u, 0x2130u, 0x129bu, 0xdc01u, 0xd6feu, 0xccadu, 0
     };
     // A trailing surrogate followed by a lead surrogate (U+DC03 U+D901).
     static const UChar invalid3[] = {
         0xd800u, 0xdc00u, 0x0061u, 0xdc03u, 0xd901u, 0xccadu, 0
     };
 
     static const UChar* invalidUStrings[] = { invalid1, invalid2, invalid3 };
 
     for (size_t i = 0; i < WTF_ARRAY_LENGTH(invalidUStrings); ++i) {
         String invalidTarget(invalidUStrings[i]);
         RefPtrWillBeRawPtr<Range> actualRange = findPlainText(range.get(), invalidTarget, 0);
         EXPECT_TRUE(areRangesEqual(expectedRange.get(), actualRange.get()));
     }
 }
 
 }