feat: add missing properties and JSX attributes code fixes

[Oleksandr Tarasiuk (a-tarasyuk)]

Fixes #64689

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🟡 Changes recommended

Rest arguments and aliased enum or class values can produce missing or invalid fixes.

2 open findings

• Resolve enum aliases relative to the enclosing declaration · New
• Handle rest parameters when mapping contextual argument types · New

🧠 Review effort: Balanced

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🟡 Changes recommended

Generated fixes mishandle semantic JSX children, optional spread properties, and runtime references from type-only imports.

5 open findings

• Register imports for generated computed-name symbols · New
• Promote enum imports for generated runtime references · New
• Promote class imports for generated default values · New
• Do not mark optional spread properties as seen · New
• Account for semantic JSX children when finding missing props · New

2 resolved since last review

• Resolve enum aliases relative to the enclosing declaration
• Handle rest parameters when mapping contextual argument types

🧠 Review effort: Balanced

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🔵 Needs a closer look

Class defaults can generate invalid constructor calls for ambient, inherited, or inaccessible constructors.

0 open findings

5 resolved since last review

• Promote class imports for generated default values
• Promote enum imports for generated runtime references
• Register imports for generated computed-name symbols
• Account for semantic JSX children when finding missing props
• Do not mark optional spread properties as seen

Previously missed (1)

In code that hasn't changed since last review

Use construct signatures to determine zero-argument constructibility

tsc/​internal/​ls/​codeactions_missingmemberfixer.go:619

This constructor check is based only on a constructor with a body, so ambient classes and derived classes with an inherited required constructor are treated as zero-argument constructible. For example, declare class C { constructor(x: string) } used as a required property is filled with new C, which immediately reports “Expected 1 argument”; private/protected constructors have a similar problem, while optional-parameter constructors are unnecessarily rejected. Determine zero-argument constructibility and accessibility from the class's construct signatures instead of the body declaration.

🧠 Review effort: Balanced

[Copilot]

🔵 Needs a closer look

The broad compiler, import-rewriting, content-mapping, and fix-all interactions warrant final human validation.

0 open findings

🧠 Review effort: Balanced