fix Issue 10232 - AndExpression grammar is not correct
fix AndAndExpression grammar
fix Issue 13451 - Lambda syntax with explicit return type not documented
Merge pull request #656 from 9rnsr/fix13451

Issue 13451 - Lambda syntax with explicit return type not documented
Merge pull request #659 from 9rnsr/fix10232

Issue 10232 - AndExpression grammar is not correct