Small API changes in preparation for dotty-interfaces

- Rename Diagnostic#msg to message, this is nicer for a public API
- Rename SourceFile#lineContents and SourcePosition#lineContents
  to lineContent, the former is not grammatically correct.
- Add some convenience methods to SourcePosition.

1 files changed, 10 insertions, 5 deletions

diff --git a/src/dotty/tools/dotc/util/SourcePosition.scala b/src/dotty/tools/dotc/util/SourcePosition.scala
index 9e02841f2..fa7a4650d 100644
--- a/src/dotty/tools/dotc/util/SourcePosition.scala
+++ b/src/dotty/tools/dotc/util/SourcePosition.scala
@@ -5,19 +5,24 @@ import Positions.{Position, NoPosition}
 
 /** A source position is comprised of a position in a source file */
 case class SourcePosition(source: SourceFile, pos: Position) {
-  def point: Int = pos.point
-  def start: Int = pos.start
-  def end: Int = pos.end
   def exists = pos.exists
 
-  def lineContents: String = source.lineContents(point)
+  def lineContent: String = source.lineContent(point)
 
+  def point: Int = pos.point
   /** The line of the position, starting at 0 */
   def line: Int = source.offsetToLine(point)
-
   /** The column of the position, starting at 0 */
   def column: Int = source.column(point)
 
+  def start: Int = pos.start
+  def startLine: Int = source.offsetToLine(start)
+  def startColumn: Int = source.column(start)
+
+  def end: Int = pos.end
+  def endLine: Int = source.offsetToLine(end)
+  def endColumn: Int = source.column(end)
+
   override def toString =
     if (source.exists) s"${source.file}:${line + 1}"
     else s"(no source file, offset = ${pos.point})"