Update test file names (and header)

Author: derickr

tests/bson/bson-fromPHP_error-002.phpt

@@ -1,4 +1,4 @@
---TEST--o
+--TEST--
 MongoDB\BSON\fromPHP(): Encoding unknown Type objects as a document field value
 --FILE--
 <?php

tests/bson/bson-fromPHP_error-004.phpt

@@ -1,5 +1,5 @@
 --TEST--
-BSON\fromPHP(): PHP documents with circular references
+MongoDB\BSON\fromPHP(): PHP documents with circular references
 --FILE--
 <?php
 

tests/bson/bson-fromPHP_error-006.phpt

@@ -1,5 +1,5 @@
 --TEST--
-BSON\fromPHP(): PHP documents with null bytes in field name
+MongoDB\BSON\fromPHP(): PHP documents with null bytes in field name
 --FILE--
 <?php
 

tests/bson/bson-fromPHP_error-007.phpt

@@ -1,5 +1,5 @@
 --TEST--
-BSON\fromPHP(): Serializable returns document with null bytes in field name
+MongoDB\BSON\fromPHP(): Serializable returns document with null bytes in field name
 --FILE--
 <?php
 

tests/bson/bson-fromPHP_error-008.phpt

@@ -1,5 +1,5 @@
 --TEST--
-BSON\fromPHP(): PHP documents with circular references
+MongoDB\BSON\fromPHP(): PHP documents with circular references
 --FILE--
 <?php