Cleanup from code coverage report

lib/handlebars/compiler/javascript-compiler.js

@@ -50,7 +50,7 @@ JavaScriptCompiler.prototype = {
 
   compile: function(environment, options, context, asObject) {
     this.environment = environment;
-    this.options = options || {};
+    this.options = options;
     this.stringParams = this.options.stringParams;
     this.trackIds = this.options.trackIds;
     this.precompile = !asObject;
@@ -361,9 +361,9 @@ JavaScriptCompiler.prototype = {
           return ' != null ? ' + lookup + ' : ' + current;
         } else {
           // Otherwise we can use generic falsy handling
-          return (falsy ? ' && ' : ' != null && ') + lookup;
+          return ' && ' + lookup;
         }
-      }, true);
+      });
     }
   },
 
@@ -385,7 +385,7 @@ JavaScriptCompiler.prototype = {
     for (var i = 0; i < len; i++) {
       this.replaceStack(function(current) {
         return ' && ' + this.nameLookup(current, parts[i], 'data');
-      }, true);
+      });
     }
   },
 
@@ -714,7 +714,7 @@ JavaScriptCompiler.prototype = {
     return stack;
   },
 
-  replaceStack: function(callback, chain) {
+  replaceStack: function(callback) {
     var prefix = '',
         inline = this.isInline(),
         stack,
@@ -731,18 +731,14 @@ JavaScriptCompiler.prototype = {
 
     if (top instanceof Literal) {
       // Literals do not need to be inlined
-      stack = top.value;
+      prefix = stack = top.value;
       usedLiteral = true;
-
-      if (chain) {
-        prefix = stack;
-      }
     } else {
       // Get or create the current stack name for use by the inline
       createdStack = !this.stackSlot;
       var name = !createdStack ? this.topStackName() : this.incrStack();
 
-      prefix = '(' + this.push(name) + ' = ' + top + (chain ? ')' : '),');
+      prefix = '(' + this.push(name) + ' = ' + top + ')';
       stack = this.topStack();
     }