WIP another fix

Author: thg2k

tests/PHPStan/Rules/Comparison/ElseIfConstantConditionRuleTest.php

@@ -135,6 +135,10 @@ public function testBug11674(): void
 				'Elseif condition is always false.',
 				28,
 			],
+			[
+				'Elseif condition is always false.',
+				36,
+			],
 		]);
 	}
 

tests/PHPStan/Rules/Comparison/data/bug-11674.php

@@ -10,31 +10,31 @@ function show() : void {
 		if ((int) $this->param) {
 			echo 1;
 		} elseif ($this->param) {
-			echo 2;
+			echo 2; // might be "0"
 		}
 	}
 
 	function show2() : void {
 		if ((float) $this->param) {
 			echo 1;
 		} elseif ($this->param) {
-			echo 2;
+			echo 2; // might be "0"
 		}
 	}
 
 	function show3() : void {
 		if ((bool) $this->param) {
 			echo 1;
 		} elseif ($this->param) {
-			echo 2;
+			echo 2; // not possible
 		}
 	}
 
 	function show4() : void {
 		if ((string) $this->param) {
 			echo 1;
 		} elseif ($this->param) {
-			echo 2;
+			echo 2; // not possible
 		}
 	}
 }