Fix duplicate test names in WebAudio tests

third_party/WebKit/LayoutTests/webaudio/constructor/channelmerger.html

Index: third_party/WebKit/LayoutTests/webaudio/constructor/channelmerger.html
diff --git a/third_party/WebKit/LayoutTests/webaudio/constructor/channelmerger.html b/third_party/WebKit/LayoutTests/webaudio/constructor/channelmerger.html
index ad72836b2d31394fbb294ce52e1719c8ec613a55..92260a0afb146ff0cf151a52319088d1cc919b4e 100644
--- a/third_party/WebKit/LayoutTests/webaudio/constructor/channelmerger.html
+++ b/third_party/WebKit/LayoutTests/webaudio/constructor/channelmerger.html
@@ -49,21 +49,21 @@
         var node;
         var success = true;
 
-        success = Should("node = new ChannelMergerNode(context)", function () {
+        success = Should("node0 = new ChannelMergerNode(context)", function () {
           node = new ChannelMergerNode(context);
         }).notThrow();
-        success = Should("node instanceof ChannelMergerNode", node instanceof ChannelMergerNode)
+        success = Should("node0 instanceof ChannelMergerNode", node instanceof ChannelMergerNode)
           .beEqualTo(true) && success;
 
-        success = Should("node.numberOfInputs", node.numberOfInputs)
+        success = Should("node0.numberOfInputs", node.numberOfInputs)
           .beEqualTo(6) && success;
-        success = Should("node.numberOfOutputs", node.numberOfOutputs)
+        success = Should("node0.numberOfOutputs", node.numberOfOutputs)
           .beEqualTo(1) && success;
-        success = Should("node.channelCount", node.channelCount)
+        success = Should("node0.channelCount", node.channelCount)
           .beEqualTo(1) && success;
-        success = Should("node.channelCountMode", node.channelCountMode)
+        success = Should("node0.channelCountMode", node.channelCountMode)
           .beEqualTo("explicit") && success;
-        success = Should("node.channelInterpretation", node.channelInterpretation)
+        success = Should("node0.channelInterpretation", node.channelInterpretation)
           .beEqualTo("speakers") && success;
 
         Should("new ChannelMergerNode(context)", success)
@@ -99,17 +99,17 @@
           channelInterpretation: "discrete"
         };
 
-        success = Should("node = new ChannelMergerNode(context, " + JSON.stringify(options) +
+        success = Should("node1 = new ChannelMergerNode(context, " + JSON.stringify(options) +
           ")",
           function () {
             node = new ChannelMergerNode(context, options);
           }).notThrow();
 
-        success = Should("node.numberOfInputs", node.numberOfInputs)
+        success = Should("node1.numberOfInputs", node.numberOfInputs)
           .beEqualTo(options.numberOfInputs) && success;
-        success = Should("node.numberOfOutputs", node.numberOfOutputs)
+        success = Should("node1.numberOfOutputs", node.numberOfOutputs)
           .beEqualTo(1) && success;
-        success = Should("node.channelInterpretation", node.channelInterpretation)
+        success = Should("node1.channelInterpretation", node.channelInterpretation)
           .beEqualTo(options.channelInterpretation) && success;
 
         options = {