Jon Ross-Perkins

Check usage for verbose formatting of instructions in crashes

3

#4125 added verbose formatting of instructions in crashes. If it's not used, or it gets in the way (a crash during a pretty printing) we might want to roll it...

For reference, we're going down the busyboxing route because Carbon depends on Clang, and we want both to be available as binaries. Busyboxing allows this while avoiding duplicating symbols between...

The general intent here is to support basic use of `i32` and similar integer types in min_prelude tests, without all the various arithmetic support. This is in support of #5547...

Update eval tests

1

In the vein of https://github.com/carbon-language/carbon-lang/pull/5455. This also uses the 'int' min_prelude being added by #5546.

Update tuple tests, and merge in expr-category

1

In the vein of https://github.com/carbon-language/carbon-lang/pull/5455. This is based on #5546 for the int prelude, and also adds negate for testing. This merges the one expr_category test into tuple testing because...

Should classes explicitly declare whether they have a vptr?

2

### Summary of issue: Right now, whether a class's object representation includes a vptr is implicit from the presence of virtual functions. Should it be explicitly declared? ### Details: A...