DEPRECATION WARNING on line 1 of /sass/spec/libsass-issues/issue_1706/input.scss:
Naming a function "calc" is disallowed and will be an error in future versions of Sass.
This name conflicts with an existing CSS function with special parse rules.

DEPRECATION WARNING on line 2 of /sass/spec/libsass-issues/issue_1706/input.scss:
Naming a function "-foo-calc" is disallowed and will be an error in future versions of Sass.
This name conflicts with an existing CSS function with special parse rules.
