InvalidOperationError when trying to set the type of a ArrayBindingPattern or ObjectBindingPattern

[LiamHiscox]

Hello,

i was writing a small tool that declares the type of all functions, paramters and variables if it is anything other than the any type.
But an Error is thrown because it expects an Identifier when calling setType on a VariableDeclaration or on a Parameter.

Version: 12.2.0

const sourceFile = project.createSourceFile('type.ts', 'const {a, b} = {a: 1, b: 2};');
sourceFile.getDescendantsOfKind(SyntaxKind.VariableDeclaration).forEach(declaration => {
  if (!declaration.getType().isAny()) {
    declaration.setType(declaration.getType().getText());
  }
});

and

const sourceFile = project.createSourceFile('type.ts', 'const simpleFun = ([key, value]) => true);');
sourceFile.getDescendantsOfKind(SyntaxKind.Parameter).forEach(parameter => {
  if (!parameter.getType().isAny()) {
    declaration.setType(parameter.getType().getText());
  }
});

Expected behavior

I expect the setType function to also be able to set the type of ArrayBindingPatterns or ObjectBindingPatterns as it is valid TypeScript code.

I also wanted to thank you for this amazing tool. I am a big fan of your work!

[LiamHiscox]

I realized now that the variable declaration already fails on the getType operation