Remove $separator arg from Name::toString()

Author: nikic

lib/PhpParser/Node/Name.php

@@ -83,14 +83,13 @@ public function isRelative() {
     }
 
     /**
-     * Returns a string representation of the name by imploding the namespace parts with a separator.
-     *
-     * @param string $separator The separator to use (defaults to the namespace separator \)
+     * Returns a string representation of the name by imploding the namespace parts with the
+     * namespace separator.
      *
      * @return string String representation
      */
-    public function toString($separator = '\\') {
-        return implode($separator, $this->parts);
+    public function toString() {
+        return implode('\\', $this->parts);
     }
 
     /**

test/PhpParser/Node/NameTest.php

@@ -27,7 +27,6 @@ public function testToString() {
 
         $this->assertSame('foo\bar', (string) $name);
         $this->assertSame('foo\bar', $name->toString());
-        $this->assertSame('foo_bar', $name->toString('_'));
     }
 
     public function testAppend() {