[clang] [lldb] [clang]: support std::meta::info for primitive types (PR #190356)

[Nhat Nguyen via cfe-commits]

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@@ -828,6 +829,11 @@ class TargetInfo : public TransferrableTargetInfo,
   unsigned getIbm128Align() const { return Ibm128Align; }
   const llvm::fltSemantics &getIbm128Format() const { return *Ibm128Format; }
 
+  /// Returns the size of std::meta::info.
+  unsigned getMetaInfoWidth() const { return MetaInfoWidth; }
+  /// Returns the align of std::meta::info.
+  unsigned getMetaInfoAlign() const { return MetaInfoAlign; }
+
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changkhothuychung wrote:

I switched to using sizeof(void*) and alignof(void*) for std::meta::info. 

https://github.com/llvm/llvm-project/pull/190356