Introduce `ClosureType::isStaticClosure()`#5699

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Commits on Jun 5, 2026

Introduce `ClosureType::isStaticClosure()` and narrow `Closure::bindTo()`/`Closure::bind()` return type for static closures

VincentLanglet
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Revert `Closure::bindTo()`/`Closure::bind()` return type narrowing for static closures

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Use hyphen in static closure prefix and extract `describeWithPrefix()` helper

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Replace `describeWithPrefix()` string param with `showPure`/`showStatic` booleans

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Remove named parameters from describeBody() calls

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Update AttributeReflectionTest expectations for static closures in attributes

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Add test cases for static-pure-Closure describe output

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Only show static- prefix for common callable closures in describe()

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Revert describeBody() extraction, inline static- prefix in isCommonCallable branch

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simplify

staabm
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Show static- prefix in describe() at precise/cache levels, propagate isStatic

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Add accepts/TypeCombinator/toPhpDocNode tests, update expectations for static- prefix

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Remove isStatic from ClosureTypeFactory runtime reflection path

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Fix
VincentLanglet
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