EarlyExitSniff: Added missing "yield from" support

Author: kukulich

SlevomatCodingStandard/Helpers/TokenHelper.php

@@ -48,6 +48,7 @@ class TokenHelper
 		T_BREAK,
 		T_THROW,
 		T_YIELD,
+		T_YIELD_FROM,
 		T_EXIT,
 	];
 

tests/Sniffs/ControlStructures/EarlyExitSniffTest.php

@@ -16,9 +16,9 @@ public function testErrors(): void
 	{
 		$report = self::checkFile(__DIR__ . '/data/earlyExitErrors.php');
 
-		self::assertSame(48, $report->getErrorCount());
+		self::assertSame(49, $report->getErrorCount());
 
-		foreach ([6, 15, 24, 33, 42, 50, 58, 66, 74, 82, 90, 98, 108, 149, 157, 165, 191, 199, 207] as $line) {
+		foreach ([6, 15, 24, 33, 42, 50, 58, 66, 74, 82, 90, 98, 108, 149, 157, 165, 191, 199, 207, 376] as $line) {
 			self::assertSniffError($report, $line, EarlyExitSniff::CODE_EARLY_EXIT_NOT_USED, 'Use early exit instead of else.');
 		}
 

tests/Sniffs/ControlStructures/data/earlyExitErrors.fixed.php

@@ -421,3 +421,11 @@ function logicalVeryComplicatedCondition() {
 
 	doSomething();
 }
+
+function yieldFrom() {
+	if ($number < 0) {
+		yield from [];
+	}
+
+	// Something
+}

tests/Sniffs/ControlStructures/data/earlyExitErrors.php

@@ -369,3 +369,11 @@ function logicalVeryComplicatedCondition() {
 		doSomething();
 	}
 }
+
+function yieldFrom() {
+	if ($number >= 0) {
+		// Something
+	} else {
+		yield from [];
+	}
+}