Bug 23931 – Error: reference to local variable `this` calling non-scope member function `this.this()`

The compiler emits an unhelpful diagnostic error message: fail_compilation/test20245.d(69): Error: reference to local variable `this` calling non-scope member function `this.this()` for this file in the test suite: compiler/test/fail_compilation/test20245.d since commit: https://github.com/dlang/dmd/commit/bd2bdae5e0e3ace7eb6eab69d5ebcd77c0dd8d28 The problem is that the message doesn't provide enough information for the user to understand the problem. One possible improvement would be: fail_compilation/test20245.d(69): Error: reference to member variable `DontDoThis.content` possibly escaped when passed to non-scope member function `Exception.this()` Context: https://github.com/dlang/dmd/pull/15249#discussion_r1199164933

@ntrel created dlang/dmd pull request #15368 "Fix Issue 23931 - Error: reference to local variable `this` calling n…" fixing this issue: - Fix Issue 23931 - Error: reference to local variable `this` calling non-scope member function `this.this()` https://github.com/dlang/dmd/pull/15368

dlang/dmd pull request #15368 "Fix Issue 23931 - Error: reference to local variable `this` calling n…" was merged into master: - 47154c4d59bab15cd5beec94d505a6391955640f by Nick Treleaven: Fix Issue 23931 - Error: reference to local variable `this` calling non-scope member function `this.this()` https://github.com/dlang/dmd/pull/15368