ErrorInfo interface refers also the methods and not only field.

[noam-honig]

Describe the bug
The ErrorInfo's modelState property includes references to the objects fields, but also to the object's methods.

To Reproduce
Consider the following class:

class person{
  firstName='';
  lastName='';
  getFullName(){
  return this.firstName+' '+this.lastName
  }
}

Expected behavior
A clear and concise description of what you expected to happen.
When I use the ErrorInfo type with it, it should only include firstName and lastName - and not - getFullName

Screenshots
If applicable, add screenshots to help explain your problem.

The getFullName shouldn't appear in the intelisense

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.