[gedit-code-assistance] Fixed compiler errors for vala 0.15

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 09a5f3e866cb683288b473497ae14b12dafa97e3
Author: Jesse van den Kieboom <jesse vandenkieboom epfl ch>
Date:   Sun Mar 4 21:41:54 2012 +0100

    Fixed compiler errors for vala 0.15

 src/gcp-diagnostic-support.vala |    4 ++--
 vapi/clang.vapi                 |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/gcp-diagnostic-support.vala b/src/gcp-diagnostic-support.vala
index 328b8f6..57ec992 100644
--- a/src/gcp-diagnostic-support.vala
+++ b/src/gcp-diagnostic-support.vala
@@ -43,7 +43,7 @@ interface DiagnosticSupport : Document
 			}
 		});
 
-		ret.sort_with_data<Diagnostic>((CompareDataFunc)sort_on_severity);
+		ret.sort_with_data((CompareDataFunc)sort_on_severity);
 
 		return ret.to_array();
 	}
@@ -70,7 +70,7 @@ interface DiagnosticSupport : Document
 			}
 		});
 
-		ret.sort_with_data<Diagnostic>((CompareDataFunc)sort_on_severity);
+		ret.sort_with_data((CompareDataFunc)sort_on_severity);
 
 		return ret.to_array();
 	}
diff --git a/vapi/clang.vapi b/vapi/clang.vapi
index 479c1e7..56cba84 100644
--- a/vapi/clang.vapi
+++ b/vapi/clang.vapi
@@ -62,7 +62,7 @@ namespace CX
 
 		[CCode (cname = "clang_parseTranslationUnit")]
 		public TranslationUnit(Index idx,
-		                       string ?source_filename = 0,
+		                       string ?source_filename = null,
 		                       [CCode(array_length_pos=3.9, array_null_terminated = false, type = "char const * const *")] string[] ?command_line_args = null,
 		                       [CCode(array_length_pos=4.9, array_null_terminated = false)] UnsavedFile[] ?unsaved_files = null,
 		                       ParseFlags options = ParseFlags.default());