Incorporating feedback from @chriseth

src/app.js

@@ -210,7 +210,7 @@ var run = function() {
 		return false;
 	}
 
-	function fileTabFromKey() {
+	function activeFileTab() {
 		var name = editor.getCacheFile();
 		return $('#files .file').filter(function(){ return $(this).find('.name').text() == name; });
 	}
@@ -227,7 +227,7 @@ var run = function() {
 		}
 
 		if (editor.cacheFileIsPresent()) {
-			var active = fileTabFromKey();
+			var active = activeFileTab();
 			active.addClass('active');
 			editor.resetSession();
 		}

src/app/compiler.js

@@ -21,7 +21,7 @@ function Compiler(web3, editor, handleGithubCall, outputField, hidingRHP, update
   function onChange() {
     var input = editor.getValue();
     if (input === "") {
-      window.localStorage.setItem(editor.getRawCacheFile(), '');
+      editor.setCacheFileContent('');
       return;
     }
     if (input === previousInput)
@@ -38,7 +38,7 @@ function Compiler(web3, editor, handleGithubCall, outputField, hidingRHP, update
     sourceAnnotations = [];
     outputField.empty();
     var input = editor.getValue();
-    window.localStorage.setItem(editor.getRawCacheFile(), input);
+    editor.setCacheFileContent(input)
 
     var files = {};
     files[editor.getCacheFile()] = input;

src/app/editor.js

@@ -11,15 +11,15 @@ function Editor(loadingFromGist) {
       untitledCount = (untitledCount - 0) + 1;
     SOL_CACHE_FILE = SOL_CACHE_UNTITLED + untitledCount;
     sessions[SOL_CACHE_FILE] = null;
-    window.localStorage[SOL_CACHE_FILE] = '';
+    this.setCacheFileContent('');
   };
 
-  this.setCacheFile = function(cacheFile) {
-    SOL_CACHE_FILE = utils.fileKey(cacheFile);
+  this.setCacheFileContent = function(content) {
+    window.localStorage.setItem(SOL_CACHE_FILE, content);
   };
 
-  this.getRawCacheFile = function() {
-    return SOL_CACHE_FILE;
+  this.setCacheFile = function(cacheFile) {
+    SOL_CACHE_FILE = utils.fileKey(cacheFile);
   };
 
   this.getCacheFile = function() {

src/app/renderer.js

@@ -83,8 +83,8 @@ function Renderer(web3, editor, compiler, updateFiles) {
   };
   this.error = renderError;
 
-  var combined = function(contractName, interface, bytecode){
-    return JSON.stringify([{name: contractName, interface: interface, bytecode: bytecode}]);
+  var combined = function(contractName, jsonInterface, bytecode){
+    return JSON.stringify([{name: contractName, interface: jsonInterface, bytecode: bytecode}]);
   };
 
   function renderContracts(data, source) {
@@ -224,15 +224,15 @@ function Renderer(web3, editor, compiler, updateFiles) {
     return text;
   };
 
-  function gethDeploy(contractName, interface, bytecode){
+  function gethDeploy(contractName, jsonInterface, bytecode){
     var code = "";
-    var funABI = getConstructorInterface(JSON.parse(interface));
+    var funABI = getConstructorInterface(JSON.parse(jsonInterface));
 
     funABI.inputs.forEach(function(inp) {
       code += "var " + inp.name + " = /* var of type " + inp.type + " here */ ;\n";
     });
 
-    code += "var " + contractName + "Contract = web3.eth.contract(" + interface.replace("\n","") + ");"
+    code += "var " + contractName + "Contract = web3.eth.contract(" + jsonInterface.replace("\n","") + ");"
       +"\nvar " + contractName + " = " + contractName + "Contract.new(";
 
     funABI.inputs.forEach(function(inp) {