Support static class fields

[pYr0x]

i was playing around with AST by using acorn.
Acorn has a plugin to parse code with static class fields. https://github.com/acornjs/acorn-static-class-features
Unfortuallity escodegen can't handle this feature. So i wrote a function that generates a static assignment from the AST provided by acorn.
if you want this snippet inside your codebase i can contribute and create a PR.

PropertyDefinition: function (expr, precedence, flags) {
          var result;
          if (expr['static']) {
            result = ['static' + space];
          } else {
            result = [];
          }
          result.push(this.generateAssignment(expr.key, expr.value, '=', precedence, flags));
          result.push(this.semicolon(flags));
          return result;
        },

[ajvincent]

Peanut gallery observation: I'm guessing this won't work until at least #438 lands, and that one I just noticed can't work with the Node versions this project tests for. I'm pretty sure based on Mozilla's documentation this won't work until Node 12+ is the minimum version escodegen supports...

Which is really unfortunate.

[sanex3339]

This feature just has been implemented in my fork:
https://www.npmjs.com/package/@javascript-obfuscator/escodegen

PR:
javascript-obfuscator#3

[imtaotao]

I have the same problem, but the problem seems to still exist.

[stepankuzmin]

Same problem here, PropertyDefinition is missing.

[kevincox]

I implemented this: #465