Bug 21998 – checkaction=context should support basic types during CTFE

Formatting for basic types doesn't work during CTFE because the implementation calls into external functions which cannot be evaluated. For example, assert(1 == 2) aborts with `sprintf cannot be evaluated at compile time`.

@MoonlightSentinel created dlang/druntime pull request #3494 "Issue 21998 - Support formatting of integrals during CTFE with..." mentioning this issue: - Issue 21998 - Support formatting of integrals during CTFE with... ... checkaction=context. Use Druntime's internal implementation instead of LibC because it's ctfe'able. https://github.com/dlang/druntime/pull/3494

dlang/druntime pull request #3494 "Issue 21998 - Support more types during CTFE with checkaction=context" was merged into master: - f2d2d623451912b8f85caf5d5eda1cf8b7ac4621 by MoonlightSentinel: Issue 21998 - Support formatting of integrals during CTFE with... ... checkaction=context. Use Druntime's internal implementation instead of LibC because it's ctfe'able. - cfe0442debde0b993d2691609106e16eba62530c by MoonlightSentinel: Issue 21998 - Support formatting of pointers during CTFE with... ... checkaction=context. Use Druntime's internal implementation instead of LibC because it's ctfe'able. - 1de04fc8529b80e254a7b22507c039dfe628d901 by MoonlightSentinel: Issue 21998 - Support formatting of shared values during CTFE with... ... checkaction=context. Skip `atomicLoad` during CTFE, it's single threaded anyways. - 5d5f5683bc181b00c008f3ec68f093b3c43e4cf3 by MoonlightSentinel: Issue 21998 - Skip formatting of FPN's during CTFE with... ... -checkaction=context. An embedded warning about an unsupported type is better than the entire assertion failure being hidden by `Cannot evaluate *** at compile time`. - 2b5d52de8e820ec1cb6eb92619b124e741234444 by MoonlightSentinel: Issue 21998 - Support formatting of invalid enum values during CTFE ... with checkaction=context. Don't reinterpreting cast during CTFE. - b5c3ec8a285e3498f51934d46aad68dff13e1b06 by MoonlightSentinel: Issue 21998 - Skip formatting of void[] during CTFE with... ... -checkaction=context. An embedded warning about an unsupported type is better than the entire assertion failure being hidden by `Cannot cast ... at compile time`. https://github.com/dlang/druntime/pull/3494

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