clang 8.0.0

### - u -

- unaryExprOrTypeTraitExpr : clang::ast_matchers
- unaryOperator : clang::ast_matchers
- unaryTransformType : clang::ast_matchers
- UndeserializedColor : clang
- UnixAPI : clang::ento::categories
- unless : clang::ast_matchers
- unresolvedLookupExpr : clang::ast_matchers
- unresolvedMemberExpr : clang::ast_matchers
- unresolvedUsingTypenameDecl : clang::ast_matchers
- unresolvedUsingValueDecl : clang::ast_matchers
- UOP_Max : clang::threadSafety::til
- UOP_Min : clang::threadSafety::til
- userDefinedLiteral : clang::ast_matchers
- usingDecl : clang::ast_matchers
- usingDirectiveDecl : clang::ast_matchers