BREAKING: correct nodes TSConstructorType and TSConstructorType (variant 1)

[armano2]

This is breaking change https://github.com/babel/babel/issues/9231 and i'm unsure if we should apply it.

There is alternative way of fixing it #74

Right now we are missing support for TSCallSignature

This PR changes typeAnnotation property to correct returnType, and make it consistent with FunctionExpression, ArrowFunctionExpression, FunctionDeclaration, and so on

fixes: #30

[armano2]

if you don't think that is a good idea, feel free to close this :>

[armano2]

74

babel parses CallSignature and ConstructSignature as TSCallSignatureDeclaration and TSConstructSignatureDeclaration and has fields:

  interface foo {
    <P>(x: X): A
  }

• typeParameters typeParameters
• parameters array of all parameters
• typeAnnotation expected return type of function

right now we are parsing it as typeParameters, (params or parameters) and typeAnnotation

---

we could align it to what babel expect, by changing types and replacing params with parameters for CallSignature

    case SyntaxKind.CallSignature:
    case SyntaxKind.ConstructSignature: {
      Object.assign(result, {
        type: AST_NODE_TYPES[`TS${SyntaxKind[node.kind]}Declaration`],
        parameters: convertParameters(node.parameters)
      });

      if (node.type) {
        result.typeAnnotation = convertTypeAnnotation(
          node.type
        );
      }

      if (node.typeParameters) {
        result.typeParameters = convertTSTypeParametersToTypeParametersDeclaration(
          node.typeParameters
        );
      }

      break;
    }