[llvm] [libc] [libc][NFC] Fix missing LIBC_INLINE + style (PR #73659)

[Roland McGrath via llvm-commits]

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@@ -24,74 +26,74 @@ constexpr unsigned long long ULLONG_MAX = ~0ULL;
 
 template <class T> class numeric_limits {
 public:
-  static constexpr T max();
-  static constexpr T min();
+  LIBC_INLINE static constexpr T max();
+  LIBC_INLINE static constexpr T min();
 };
 
 // TODO: Add numeric_limits specializations as needed for new types.
 
 template <> class numeric_limits<int> {
 public:
-  static constexpr int max() { return INT_MAX; }
-  static constexpr int min() { return INT_MIN; }
+  LIBC_INLINE static constexpr int max() { return INT_MAX; }
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frobtech wrote:

This is a fundamental misunderstanding of the purpose of `LIBC_INLINE`.  It is never implicit, because it exists to be (sometimes) defined to something other than simply `inline`.

https://github.com/llvm/llvm-project/pull/73659