boolean (PsiMethod method, PsiType left, PsiType right, boolean allowUncheckedConversion) { PsiFunctionalExpression fun = null; if (right instanceof PsiLambdaExpressionType) { fun = ((PsiLambdaExpressionType)right).getExpression(); } else if (right instanceof PsiMethodReferenceType) { fun = ((PsiMethodReferenceType)right).getExpression(); } return fun != null ? !(left instanceof PsiArrayType) && fun.isAcceptable(left, method) : TypeConversionUtil.isAssignable(left, right, allowUncheckedConversion); }