Fix small errors in Jasmine matcher messages

spec/unit/compiler/passes/helpers.js

@@ -63,8 +63,8 @@ beforeEach(function() {
         this.actual(ast);
 
         this.message = function() {
-          return "Expected the pass to report an error"
-               + (details ? " with details " + jasmine.pp(details) : "") + ", "
+          return "Expected the pass to report an error "
+               + (details ? "with details " + jasmine.pp(details) + " ": "")
                + "for grammar " + jasmine.pp(grammar) + ", "
                + "but it didn't.";
         };
@@ -79,7 +79,7 @@ beforeEach(function() {
 
         if (this.isNot) {
           this.message = function() {
-            return "Expected the pass not to report an error"
+            return "Expected the pass not to report an error "
                  + "for grammar " + jasmine.pp(grammar) + ", "
                  + "but it did.";
           };
@@ -89,8 +89,8 @@ beforeEach(function() {
               if (details.hasOwnProperty(key)) {
                 if (!this.env.equals_(e[key], details[key])) {
                   this.message = function() {
-                    return "Expected the pass to report an error"
-                         + (details ? " with details " + jasmine.pp(details) : "") + ", "
+                    return "Expected the pass to report an error "
+                         + "with details " + jasmine.pp(details) + " "
                          + "for grammar " + jasmine.pp(grammar) + ", "
                          + "but " + jasmine.pp(key) + " "
                          + "is " + jasmine.pp(e[key]) + ".";