docs: fix some typos in comments and strings

Couple of typos fixed:
- occuring -> occurring
- imlement -> implement
- idenitifer -> identifer
etc...

Closes #5943

modules/angular2/test/compiler/eval_module.ts

@@ -26,7 +26,7 @@ export function evalModule(moduleSource: string, imports: string[][], args: any[
     // using SystemJS, the loader might get confused by the presence of require,
     // and attempt to load "+ modName +.js" !?!
     // A simple string concat manages to prevent that, but that is one compiler
-    // optimaztion away from breaking again. Proceed with caution!
+    // optimization away from breaking again. Proceed with caution!
     moduleSourceWithImports.push(`var ${modAlias} = require` + `('${modId}');`);
   });
   moduleSourceWithImports.push(moduleSource);

modules/angular2/test/compiler/shadow_css_spec.ts

@@ -203,7 +203,7 @@ export function main() {
             .toEqual([new CssRule('a', 'b {c}'), new CssRule('d', 'e')]);
       });
 
-      it('should capture mutiple rules where some have no body', () => {
+      it('should capture multiple rules where some have no body', () => {
         expect(captureRules('@import a ; b {c}'))
             .toEqual([new CssRule('@import a', ''), new CssRule('b', 'c')]);
       });

modules/angular2/test/compiler/template_normalizer_spec.ts

@@ -296,7 +296,7 @@ export function main() {
            expect(template.styleUrls).toEqual(['http://some/module/test.css']);
          }));
 
-      it('should normalize ViewEncapsulation.Emulated to ViewEncapsulation.None if there are no stlyes nor stylesheets',
+      it('should normalize ViewEncapsulation.Emulated to ViewEncapsulation.None if there are no styles nor stylesheets',
          inject([TemplateNormalizer], (normalizer: TemplateNormalizer) => {
            var template = normalizer.normalizeLoadedTemplate(
                dirType, new CompileTemplateMetadata(

modules/angular2/test/compiler/xhr_mock_spec.ts

@@ -101,7 +101,7 @@ export function main() {
     it('should throw when flush is called without any pending requests',
        () => { expect(() => { xhr.flush(); }).toThrowError('No pending requests to flush'); });
 
-    it('should throw on unstatisfied expectations', () => {
+    it('should throw on unsatisfied expectations', () => {
       xhr.expect('/foo', 'bar');
       xhr.when('/bar', 'foo');
       xhr.get('/bar');

modules/angular2/test/core/application_ref_spec.ts

@@ -33,7 +33,7 @@ export function main() {
 
   describe("PlatformRef", () => {
     describe("asyncApplication", () => {
-      it("should merge syncronous and asyncronous providers",
+      it("should merge synchronous and asynchronous providers",
          inject([AsyncTestCompleter, Injector], (async, injector) => {
            let ref = new PlatformRef_(injector, null);
            let ASYNC_PROVIDERS = [new Provider(Foo, {useValue: new Foo()})];

modules/angular2/test/core/change_detection/change_detector_spec.ts

@@ -1332,7 +1332,7 @@ export function main() {
           expect(d.a).toEqual(2);
         });
 
-        // TODO: enable after chaning dart infrastructure for generating tests
+        // TODO: enable after chaining dart infrastructure for generating tests
         // it('should throw when trying to assign to a local', () => {
         //   expect(() => {
         //     _createChangeDetector('(event)="$event=1"', d, null)

modules/angular2/test/core/reflection/reflector_spec.ts

@@ -160,7 +160,7 @@ export function main() {
         expect(reflector.parameters(TestObj)).toEqual([[1], [2]]);
       });
 
-      it("should return an empty list when no paramters field in the stored type info", () => {
+      it("should return an empty list when no parameters field in the stored type info", () => {
         reflector.registerType(TestObj, new ReflectionInfo());
         expect(reflector.parameters(TestObj)).toEqual([]);
       });

modules/angular2/test/core/util/decorators_spec.ts

@@ -108,13 +108,13 @@ export function main() {
         });
 
 
-        it('should ensure that last possition is function', () => {
+        it('should ensure that last position is function', () => {
           expect(() => {Class({constructor: []})})
               .toThrowError(
                   "Last position of Class method array must be Function in key constructor was 'undefined'");
         });
 
-        it('should ensure that annotation count matches paramaters count', () => {
+        it('should ensure that annotation count matches parameters count', () => {
           expect(() => {Class({constructor: [String, function MyType() {}]})})
               .toThrowError(
                   "Number of annotations (1) does not match number of arguments (0) in the function: MyType");

modules/angular2/test/facade/lang_spec.ts

@@ -80,7 +80,7 @@ export function main() {
            expect(StringWrapper.stripLeft(input, "#")).toEqual(expectedOutput);
          });
 
-      it('should not alter the provided input if the first charater does not match the provided input',
+      it('should not alter the provided input if the first character does not match the provided input',
          () => {
            var input = "+angular2 is amazing";
            expect(StringWrapper.stripLeft(input, "*")).toEqual(input);
@@ -100,7 +100,7 @@ export function main() {
         expect(StringWrapper.stripRight(input, "!")).toEqual(expectedOutput);
       });
 
-      it('should not alter the provided input if the first charater does not match the provided input',
+      it('should not alter the provided input if the first character does not match the provided input',
          () => {
            var input = "angular2 is amazing+";
 

modules/angular2/test/mock/view_resolver_mock_spec.ts

@@ -55,7 +55,7 @@ export function main() {
         expect(view.directives).toEqual([SomeDirective]);
       });
 
-      it('should allow overriding an overriden @View', () => {
+      it('should allow overriding an overridden @View', () => {
         viewResolver.setView(SomeComponent, new ViewMetadata({template: 'overridden template'}));
         viewResolver.setInlineTemplate(SomeComponent, 'overridden template x 2');
         var view = viewResolver.resolve(SomeComponent);
@@ -79,7 +79,7 @@ export function main() {
         expect(view.directives[0]).toBe(SomeOtherDirective);
       });
 
-      it('should allow overriding a directive from an overriden @View', () => {
+      it('should allow overriding a directive from an overridden @View', () => {
         viewResolver.setView(SomeComponent, new ViewMetadata({directives: [SomeOtherDirective]}));
         viewResolver.overrideViewDirective(SomeComponent, SomeOtherDirective, SomeComponent);
         var view = viewResolver.resolve(SomeComponent);

modules/angular2/test/upgrade/upgrade_spec.ts

@@ -239,7 +239,7 @@ export function main() {
                      scope.dataB = 'SAVKIN';
                      scope.event('WORKS');
 
-                     // Should not update becaus [model-a] is uni directional
+                     // Should not update because [model-a] is uni directional
                      scope.dataA = 'VICTOR';
                    }
                  })