Merge pull request #207 from P1n3appl3/master

Make Diagnostic::is_primary public

Author: Manishearth

src/diagnostics.rs

@@ -33,7 +33,7 @@ pub struct DiagnosticSpan {
     pub column_end: usize,
     /// Is this a "primary" span -- meaning the point, or one of the points,
     /// where the error occurred?
-    is_primary: bool,
+    pub is_primary: bool,
     /// Source text from the start of line_start to the end of line_end.
     pub text: Vec<DiagnosticSpanLine>,
     /// Label that should be placed at this location (if any)