Merge pull request #244 from lopekpl/type_mismatch3

QuickFix for EXPECTED_PARAMETER/RETURN_TYPE_MISMATCH
Fix gradle integration test - avoid Maven local repository reference
Merge pull request #248 from nskvortsov/master

Fix test
Regression test for kt3315
Remove unreachable code
Fix ChangeFunctionReturnTypeFix.getText() method
QuickFix for RETURN_TYPE_MISMATCH
Add SuppressWarnings to diagnostic cast