Ensure MWHttpRequest::method gets set with strtoupper() since code

examining MWHttpRequest::method always expects its value to be
fully uppercased.

Yes, this should not be a problem if MWHttpRequest is accessed
via HTTP class, but that will not always be guaranteed.

Resolves bug 36137.

Change-Id: Ic20e1b99dcb56b8a11cea50293ba44022e564de9

includes/HttpFunctions.php

@@ -216,6 +216,11 @@ class MWHttpRequest {
 
 		foreach ( $members as $o ) {
 			if ( isset( $options[$o] ) ) {
+				// ensure that MWHttpRequest::method is always
+				// uppercased. Bug 36137
+				if ( $o == 'method' ) {
+					$options[$o] = strtoupper( $options[$o] );
+				}
 				$this->$o = $options[$o];
 			}
 		}