fix Issue 10495 - Incorrect "initializer required" error using lambdas in class with fields with disabled default construction
Improve fail_compilation tests by using `TEST_OUTPUT`
fix Issue 11145 - Duplicated deprecation message "use of typedef is deprecated;"
Improve fail_compilation tests by using `TEST_OUTPUT`
fix Issue 11142 - Wrong error message "no size yet for forward reference" for opaque struct
fix Issue 11147 - Nested structs in a union are not correctly initialized
Merge pull request #2598 from 9rnsr/fix11142

Issue 11142 - Wrong error message "no size yet for forward reference" for opaque struct
Merge pull request #2601 from 9rnsr/fix11145

Issue 11145 - Duplicated deprecation message "use of typedef is deprecated;"
Merge pull request #2603 from 9rnsr/fix11147

Issue 11147 - Nested structs in a union are not correctly initialized
Merge pull request #2595 from 9rnsr/fix10495

Issue 10495 - Incorrect "initializer required" error using lambdas in class with fields with disabled default construction