[clang] Address a handful of C4146 compiler warnings where literals can be replaced with std::numeric_limits (PR #147623)

[Alex Sepkowski via cfe-commits]

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@@ -777,7 +779,7 @@ template <> struct MappingTraits<FormatStyle::SpacesInLineComment> {
     IO.mapOptional("Maximum", signedMaximum);
     Space.Maximum = static_cast<unsigned>(signedMaximum);
 
-    if (Space.Maximum != -1u)
+    if (Space.Maximum != std::numeric_limits<unsigned>::max())
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alsepkow wrote:

On further consideration, I think it would be cleaner to stay consistent with using numeric_limits for all of the updates. And given that there are only a handful of UINT_MAX cases in this file I've swapped them to use numeric_limits for consistency. That would be the preferred choice if this were new code anyways.

https://github.com/llvm/llvm-project/pull/147623