Suggestion: use syntax iskeyword against set iskeyword

[xc1427]

In the file /autoload/syntax/angular.html.vim there is:

setlocal iskeyword+=-

But this will change how motion w works on the symbol -.

I think syntax iskeyword @,48-57,_,192-255,$,- is better.

As vim document said,

This defines the keyword characters.  It's like the `iskeyword` for but only applies to syntax highlighting.

[othree]

I define iskeyword is not just for synatx highlight.
But also let SyntaxComplete can use keywords in this keywords