Adapt tests in preparation of shipping --harmony-completion.

test/mjsunit/es6/block-for.js

 // Copyright 2011 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
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 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
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 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --harmony-completion
+
 "use strict";
 
 function props(x) {
   var array = [];
   for (let p in x) array.push(p);
   return array.sort();
 }
 
 assertEquals(0, props({}).length);
 assertEquals(1, props({x:1}).length);
@@ skipping 145 matching lines @@
 assertEquals(undefined, eval("for (const i = 0; false;) { i; }"));
 assertEquals(undefined, eval("for (let i = 0; true;) { break; }"));
 assertEquals(undefined, eval("for (const i = 0; true;) { break; }"));
 assertEquals(undefined, eval("for (let i = 0; i < 10; i++) { continue; }"));
 assertEquals(undefined, eval("for (let i = 0; true;) { break; i; }"));
 assertEquals(undefined, eval("for (const i = 0; true;) { break; i; }"));
 assertEquals(undefined, eval("for (let i = 0; i < 10; i++) { continue; i; }"));
 assertEquals(0, eval("for (let i = 0; true;) { i; break; }"));
 assertEquals(0, eval("for (const i = 0; true;) { i; break; }"));
 assertEquals(9, eval("for (let i = 0; i < 10; i++) { i; continue; }"));
-assertEquals(3, eval("for (let i = 0; true; i++) { i; if (i >= 3) break; }")); // --harmony-completion: undefined
-assertEquals(2, eval("for (let i = 0; true; i++) { if (i >= 3) break; i; }")); // --harmony-completion: undefined
-assertEquals(
-  2, eval("for (let i = 0; i < 10; i++) { if (i >= 3) continue; i; }")); // --harmony-completion: undefined
+assertEquals(undefined,
+  eval("for (let i = 0; true; i++) { i; if (i >= 3) break; }"));
+assertEquals(3,
+  eval("for (let i = 0; true; i++) { i; if (i >= 3) { i; break; } }"));
+assertEquals(undefined,
+  eval("for (let i = 0; true; i++) { if (i >= 3) break; i; }"));
+assertEquals(3,
+  eval("for (let i = 0; true; i++) { if (i >= 3) { i; break; }; i; }"));
+assertEquals(undefined,
+  eval("for (let i = 0; i < 10; i++) { if (i >= 3) continue; i; }"));
+assertEquals(9,
+  eval("for (let i = 0; i < 10; i++) { if (i >= 3) {i; continue; }; i; }"));
 assertEquals(undefined, eval("foo: for (let i = 0; true;) { break foo; }"));
 assertEquals(undefined, eval("foo: for (const i = 0; true;) { break foo; }"));
 assertEquals(3, eval("foo: for (let i = 3; true;) { i; break foo; }"));