Fix incorrect use of assignment in where equality was intended - class tests.

tests/classes/assign_op_property_001.phpt

@@ -7,13 +7,13 @@ class Test {
 	private $real_a = 2;
 	
 	function __set($property, $value) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    $this->real_a = $value;
 	  }
 	}
 
 	function __get($property) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    return $this->real_a;
 	  }
 	}

tests/classes/incdec_property_001.phpt

@@ -7,13 +7,13 @@ class Test {
 	private $real_a = 2;
 	
 	function __set($property, $value) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    $this->real_a = $value;
 	  }
 	}
 
 	function __get($property) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    return $this->real_a;
 	  }
 	}

tests/classes/incdec_property_002.phpt

@@ -7,13 +7,13 @@ class Test {
 	private $real_a = 2;
 	
 	function __set($property, $value) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    $this->real_a = $value;
 	  }
 	}
 
 	function __get($property) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    return $this->real_a;
 	  }
 	}

tests/classes/incdec_property_003.phpt

@@ -7,13 +7,13 @@ class Test {
 	private $real_a = 2;
 	
 	function __set($property, $value) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    $this->real_a = $value;
 	  }
 	}
 
 	function __get($property) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    return $this->real_a;
 	  }
 	}

tests/classes/incdec_property_004.phpt

@@ -7,13 +7,13 @@ class Test {
 	private $real_a = 2;
 	
 	function __set($property, $value) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    $this->real_a = $value;
 	  }
 	}
 
 	function __get($property) {
-	  if ($property = "a") {
+	  if ($property == "a") {
 	    return $this->real_a;
 	  }
 	}