Jon Ross-Perkins d958caaff3 Refactor CheckIsAllowedRedecl and stop function definition merging (#4800) ...

Rename `CheckIsAllowedRedecl` to `DiagnoseIfInvalidRedecl` to try to
better document behavior, and clean up comments.

This extends the no-merge-if-defined behavior to functions. It was
already the case for class/interface, and just added for impl, so if
anything functions were now inconsistent. I was kind of tempted to make
a helper for it, but I didn't think of a great structure/name to get
there: `DiagnoseRedef` isn't always called when it's a redefinition, for
example due to `extern` diagnostics, it's hard to combine.

Cleans up `is_defined` calls to rely more on `has_definition_started`,
removing some code paths that are unused since definitions aren't
merged.

2025-01-14 21:13:21 +00:00

..

no_prelude

Refactor CheckIsAllowedRedecl and stop function definition merging (#4800)

2025-01-14 21:13:21 +00:00

fail_param_in_type.carbon

Make fingerprinting stable across compatible source changes. (#4789)

2025-01-10 22:30:22 +00:00

fail_param_redecl.carbon

Make fingerprinting stable across compatible source changes. (#4789)

2025-01-10 22:30:22 +00:00

import.carbon

Make fingerprinting stable across compatible source changes. (#4789)

2025-01-10 22:30:22 +00:00

param_same_name.carbon

Make fingerprinting stable across compatible source changes. (#4789)

2025-01-10 22:30:22 +00:00