[Feature] Implement complete trait adaptation support (insteadof + alias) in getMethods()

[Copilot]

Classes using traits with insteadof/as adaptations only returned their own directly-defined methods — trait-contributed methods were absent, and adapted aliases were never created.

Changes

• getMethods() rewrite (ReflectionClassLikeTrait): replaces the flat recursiveCollect call for traits with a new collectTraitMethods() that applies adaptations. Parent class and interface methods are now inlined directly.

• collectTraitMethods() (new private method): pure AST-based trait resolution pipeline:

  1. Parses each used trait's AST via ReflectionEngine::parseClass() to extract ClassMethod nodes
  2. Builds an exclusion map from Precedence (insteadof) adaptations and skips excluded methods per trait
  3. Processes Alias (as) adaptations by cloning the source ClassMethod node, patching name and flags for visibility, then constructing a new ReflectionMethod
  4. Sets $className to the using class (matches native class property / __debugInfo) and $declaringClass to the trait

• Adaptation accumulation fix (ReflectionClass::collectTraitsFromClassNode): multiple use blocks now array_merge adaptations instead of overwriting.

Example

class MyHelloWorld {
    use TraitA, TraitB {
        sayHello as protected sayHelloProtected;  // alias with visibility change
        TraitA::smallTalk as smallTalkTraitA;     // alias from specific trait
        TraitB::smallTalk insteadof TraitA;       // precedence
    }
}

// Before: only own methods returned
// After: matches native ReflectionClass::getMethods() exactly
$rc = new ReflectionClass(MyHelloWorld::class);
$rc->getMethods(); // sayHello, sayHelloProtected, sayWorld, smallTalk (TraitB), smallTalkTraitA

• Test stubs added: ClassWithPhp54TraitAndAdaptation and ClassWithPhp54TraitAndConflict exercise both adaptation types
• testGetMethodCount: removed markTestIncomplete guard that was bypassing trait-alias classes

[lisachenko]

@copilot also, support this #54 - it is relevant

[Copilot]

@copilot also, support this #54 - it is relevant

Issue #54's two patterns are already covered by this PR:

1. foo as protected fooBar; foo as private fooBaz; → handled by the Alias adaptation path in collectTraitMethods(), tested via ClassWithPhp54TraitAndAdaptation
2. ConflictedSimpleTrait::foo insteadof SimpleTrait; foo as protected fooBar; → handled by the Precedence + Alias paths, tested via ClassWithPhp54TraitAndConflict

The markTestIncomplete guard in testGetMethodCount that was blocking these classes is also removed in this PR.