docs(error/$compile.baddir): mention "components" in directive name error

Closes #14212

docs/content/error/$compile/baddir.ngdoc

@@ -1,8 +1,8 @@
 @ngdoc error
 @name $compile:baddir
-@fullName Invalid Directive Name
+@fullName Invalid Directive/Component Name
 @description
 
-This error occurs when the name of a directive is not valid.
+This error occurs when the name of a directive or component is not valid.
 
-Directives must start with a lowercase character and must not contain leading or trailing whitespaces.
+Directives and Components must start with a lowercase character and must not contain leading or trailing whitespaces.

src/ng/compile.js

@@ -928,11 +928,11 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {
   function assertValidDirectiveName(name) {
     var letter = name.charAt(0);
     if (!letter || letter !== lowercase(letter)) {
-      throw $compileMinErr('baddir', "Directive name '{0}' is invalid. The first character must be a lowercase letter", name);
+      throw $compileMinErr('baddir', "Directive/Component name '{0}' is invalid. The first character must be a lowercase letter", name);
     }
     if (name !== name.trim()) {
       throw $compileMinErr('baddir',
-            "Directive name '{0}' is invalid. The name should not contain leading or trailing whitespaces",
+            "Directive/Component name '{0}' is invalid. The name should not contain leading or trailing whitespaces",
             name);
     }
   }

test/ng/compileSpec.js

@@ -206,7 +206,7 @@ describe('$compile', function() {
       module(function() {
         expect(function() {
           directive('BadDirectiveName', function() { });
-        }).toThrowMinErr('$compile','baddir', "Directive name 'BadDirectiveName' is invalid. The first character must be a lowercase letter");
+        }).toThrowMinErr('$compile','baddir', "Directive/Component name 'BadDirectiveName' is invalid. The first character must be a lowercase letter");
       });
       inject(function($compile) {});
     });
@@ -216,7 +216,7 @@ describe('$compile', function() {
           expect(function() {
             directive(name, function() { });
           }).toThrowMinErr(
-            '$compile','baddir', 'Directive name \'' + name + '\' is invalid. ' +
+            '$compile','baddir', 'Directive/Component name \'' + name + '\' is invalid. ' +
             "The name should not contain leading or trailing whitespaces");
         }
         assertLeadingOrTrailingWhitespaceInDirectiveName(' leadingWhitespaceDirectiveName');