Handle JSDocParameterTag in ast.GetTypeAnnotationNode

[auvred]

I just randomly noticed that GetTypeAnnotationNode calls Node.Type(), which handles both JSDoc parameter and property tags:

TypeScript/tsc/internal/ast/ast.go

Lines 669 to 670 in f9f8d01

	case KindJSDocParameterTag, KindJSDocPropertyTag:
	return n.AsJSDocParameterOrPropertyTag().TypeExpression

but its own switch only includes property tags. So, for consistency, this function must have the parameter tag case missed in microsoft/typescript-go#900. No user-facing change, since the only caller doesn't pass JSDoc tags

TypeScript/tsc/internal/ls/completions.go

Lines 1120 to 1127 in f9f8d01

	// We don't want to complete using the type acquired by the shape
	// of the binding pattern; we are only interested in types acquired
	// through type declaration or inference.
	// Also proceed if rootDeclaration is a parameter and if its containing function expression/arrow function is contextually typed -
	// type of parameter will flow in from the contextual type of the function.
	canGetType := ast.HasInitializer(rootDeclaration) ||
	ast.GetTypeAnnotationNode(rootDeclaration) != nil ||
	rootDeclaration.Parent.Parent.Kind == ast.KindForOfStatement

[typescript-automation]

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[Copilot]

Copilot review overview

🟡 Changes recommended

The new AST utility behavior lacks a focused regression test.

Review effort: Balanced
Findings: 1

Open (1)

• Add regression test for KindJSDocParameterTag type annotation · New

What changed in this PR

Extends AST type annotation lookup to handle JSDoc parameter tags consistently.

Changes:

• Adds KindJSDocParameterTag to GetTypeAnnotationNode.

File	Description
tsc/​internal/​ast/​utilities.go	Supports retrieving JSDoc parameter type expressions.

[auvred]

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