Change call-sites in trace viewer to use generators instead of iteration functions.

tracing/tracing/model/slice_test.html

Index: tracing/tracing/model/slice_test.html
diff --git a/tracing/tracing/model/slice_test.html b/tracing/tracing/model/slice_test.html
index 4a71e1364385cf799189825f6204af4b5128a9fd..a80c080b7e0ce34684eb109dfd92b4023e1a6c2b 100644
--- a/tracing/tracing/model/slice_test.html
+++ b/tracing/tracing/model/slice_test.html
@@ -47,9 +47,8 @@ tr.b.unittest.testSuite(function() {
     group.createSubSlices();
 
     var foundSlices = [];
-    sC1.findTopmostSlicesRelativeToThisSlice(PREDICATE, slice => (
-        foundSlices.push(slice))
-    );
+    for (var slice of sC1.findTopmostSlicesRelativeToThisSlice(PREDICATE))
+      foundSlices.push(slice);
 
     assert.deepEqual([sC1], foundSlices);
   });
@@ -69,9 +68,8 @@ tr.b.unittest.testSuite(function() {
     group.createSubSlices();
 
     var foundSlices = [];
-    sD.findTopmostSlicesRelativeToThisSlice(PREDICATE, slice => (
-        foundSlices.push(slice)));
-
+    for (var slice of sD.findTopmostSlicesRelativeToThisSlice(PREDICATE))
+      foundSlices.push(slice);
     assert.deepEqual([sC1, sC2], foundSlices);
   });