add support for expanding debugport variable in runners

plugins/c9.ide.run/run.js

@@ -299,6 +299,9 @@ define(function(require, module, exports) {
                 if (deferred)
                     return setTimeout(callback);
                 
+                options.debugport = options.debugport || runner.debugport;
+                options.debughost = options.debughost || runner.debughost;
+                
                 var cmd = "";
                 
                 // Display a message prior to running the command
@@ -419,6 +422,10 @@ define(function(require, module, exports) {
                     idx = fnme.lastIndexOf(".");
                     return idx == -1 ? fnme : fnme.substr(0, idx);
                 }
+                if (name == "debugport")
+                    return (parseInt(options.debugport) || 0) + "";
+                if (name == "debughost")
+                    return bashQuote(options.debughost);
                 if (name == "packages")
                     return installPath + "/packages";
                 if (name == "project_path")

plugins/c9.ide.run/runners/Node.js.run

@@ -4,7 +4,7 @@
         "${debug?--nocrankshaft}",
         "${debug?--nolazy}",
         "${debug?`node --version | grep -vqE \"v0\\..\\.\" && echo --nodead_code_elimination`}",
-        "${debug?--debug-brk=15454}",
+        "${debug?--debug-brk=$debugport}",
         "$file",
         "$args"
     ],

plugins/c9.ide.run/runners/io.js.run

@@ -1,13 +0,0 @@
-{
-    "cmd": [
-        "iojs",
-        "${debug?--nocrankshaft}",
-        "${debug?--nolazy}",
-        "${debug?--nodead_code_elimination}",
-        "${debug?--debug-brk=15455}",
-        "$file",
-        "$args"
-    ],
-    "debugger": "v8",
-    "debugport": 15455
-}