Exclude preceding newlines from INDENT tokens.

Produces more meanignful locationData.

lib/coffee-script/lexer.js

@@ -363,7 +363,7 @@
           return indent.length;
         }
         diff = size - this.indent + this.outdebt;
-        this.token('INDENT', diff, 0, indent.length);
+        this.token('INDENT', diff, indent.length - size, size);
         this.indents.push(diff);
         this.ends.push('OUTDENT');
         this.outdebt = this.indebt = 0;

src/lexer.coffee

@@ -328,7 +328,7 @@ exports.Lexer = class Lexer
         @suppressNewlines()
         return indent.length
       diff = size - @indent + @outdebt
-      @token 'INDENT', diff, 0, indent.length
+      @token 'INDENT', diff, indent.length - size, size
       @indents.push diff
       @ends.push 'OUTDENT'
       @outdebt = @indebt = 0