After upgrading to 4.0 I am having trouble with ignoring unresolved references.
1. The warnings show as errors (red instead of yellow) in the code.
2. When I select a highlighted warning and add an ignore rule for a class symbol, it doesn't get listed in the "Ignore references" options of the inspections. The warning is ignored for the symbol, but I can't undo the warning.
3. When I add a global symbol to the "Ignore references" options and click "Apply", the option disappears and does not take effect.