[turbolizer] Enlarge node labels and bubbles. Fix dead node display on old JSON.

tools/turbolizer/node.js

Index: tools/turbolizer/node.js
diff --git a/tools/turbolizer/node.js b/tools/turbolizer/node.js
index 18b74d021882709a6934e89f8e038422f385979d..16f31cef8cb438c829fa63a653387bb6b4a38b8a 100644
--- a/tools/turbolizer/node.js
+++ b/tools/turbolizer/node.js
@@ -2,12 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-var DEFAULT_NODE_WIDTH = 240;
-var DEFAULT_NODE_HEIGHT = 40;
 var TYPE_HEIGHT = 25;
-var DEFAULT_NODE_BUBBLE_RADIUS = 4;
-var NODE_INPUT_WIDTH = 20;
-var MINIMUM_NODE_INPUT_APPROACH = 20;
+var DEFAULT_NODE_BUBBLE_RADIUS = 12;
+var NODE_INPUT_WIDTH = 50;
+var MINIMUM_NODE_INPUT_APPROACH = 15 + 2 * DEFAULT_NODE_BUBBLE_RADIUS;
 var MINIMUM_NODE_OUTPUT_APPROACH = 15;
 
 function isNodeInitiallyVisible(node) {
@@ -22,7 +20,7 @@ var Node = {
     return this.opcode == 'Parameter' || this.opcode.endsWith('Constant');
   },
   isLive: function() {
-    return this.live;
+    return this.live !== false;
   },
   isJavaScript: function() {
     return this.opcode.startsWith('JS');
@@ -127,7 +125,7 @@ var Node = {
       (index % 4) * MINIMUM_EDGE_SEPARATION - DEFAULT_NODE_BUBBLE_RADIUS
   },
   getOutputApproach: function(graph, index) {
-    return this.y + this.outputApproach + graph.getNodeHeight() +
+    return this.y + this.outputApproach + graph.getNodeHeight(this) +
       + DEFAULT_NODE_BUBBLE_RADIUS;
   },
   getInputX: function(index) {