Allow ClassConstFetch on new to be remembered, add tests for all expression types

Class constants are class-level, not instance-level, so narrowed types
from (new Foo())::MY_CONST should still be remembered. Also fix a type
error where $expr->class could be a Name (not Expr) for static calls.

Added tests covering: method calls, nullsafe method calls, property
fetches, nullsafe property fetches, array dim fetches, static calls,
static property fetches, class const fetches, and chained expressions.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 2 people

src/Analyser/MutatingScope.php

@@ -1002,7 +1002,6 @@ private function expressionHasNewInChain(Expr $expr): bool
 		if (
 			$expr instanceof Expr\StaticCall
 			|| $expr instanceof Expr\StaticPropertyFetch
-			|| $expr instanceof Expr\ClassConstFetch
 		) {
 			return $expr->class instanceof Expr\New_ || ($expr->class instanceof Expr && $this->expressionHasNewInChain($expr->class));
 		}

tests/PHPStan/Analyser/nsrt/bug-8985.php

@@ -41,6 +41,8 @@ public function getEntity(): Entity
 	{
 		return new Entity('test');
 	}
+
+	public const MY_CONST = 'const_value';
 }
 
 function testMethodCall(): void {
@@ -92,3 +94,9 @@ function testChainedPropertyOnMethodCall(): void {
 
 	assertType('string', (new Repository())->getEntity()->value);
 }
+
+function testClassConstFetch(): void {
+	assert((new Repository())::MY_CONST === 'const_value');
+
+	assertType("'const_value'", (new Repository())::MY_CONST);
+}