Fix(deprecation): report method name instead of type for deprecated methods

[hanseul37]

Fix deprecation message to show method name instead of type (#62396)

Changes

• Corrected the deprecation diagnostic message to display the actual method name instead of the method type.
• Modified checkDeprecatedSignature and addDeprecatedSuggestionWithSignature functions to extract and show the invoked method name.

Summary of Changes

1. In checkDeprecatedSignature:

   • Extract the invoked expression's name using tryGetPropertyAccessOrIdentifierToString.
   • If the name is missing and the expression is a PropertyAccessExpression, retrieve the name from propAccess.name.getText().
   • Fallback to <unknown> only if no name can be determined.

2. In addDeprecatedSuggestionWithSignature:

   • Use the extracted method name for deprecated diagnostics when deprecatedEntity is falsy.
   • Retains correct behavior for both signature-level and declaration-level deprecation messages.

Problem Solved

• Before: '(): ZodObject<{ compilerOptions: ZodAny; }, $loose>' is deprecated
• After: 'passthrough()' is deprecated
• The deprecation message now correctly shows the invoked method name instead of the type.

Related Issue

• Closes Deprecation error message reporting method type as deprecated instead of method name #62396

[hanseul37]

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[jakebailey]

This needs a test, but is probably wrong as it is casting nodes around to any to extract text. The fix should probably in the caller of addDeprecatedSuggestionWithSignature as that func is just a helper that automates adding a diagnostic.

[RyanCavanaugh]

Please address the prior comment from Jake

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