"$100" leads to method not found "get 100"

[peter-ahe-google]

According to a post on misc@dartlang.org, dart2js handles "$100" incorrectly.

It should lead to a parse error, but it's treated as an attempt to call a getter named 100.

[kasperl]

Added this to the Later milestone.
Removed Priority-Unassigned label.
Added Priority-Medium label.

[peter-ahe-google]

Marked this as blocking #5519.

[kasperl]

Removed this from the Later milestone.
Added Oldschool-Milestone-Later label.

[kasperl]

Removed Oldschool-Milestone-Later label.

[bkonyi]

Looks like we get a more useful error now:

tmp.dart:2:11: Error: A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
Try adding a backslash (\) to escape the '$'.
  print('$100');
          ^
tmp.dart:2:11: Error: Getter not found: ''.
  print('$100');
          ^