[clang] [clang] improve consistency with GCC vector comparison (PR #148954)

[Erich Keane via cfe-commits]

================
@@ -13206,6 +13206,30 @@ QualType ASTContext::getIntTypeForBitwidth(unsigned DestWidth,
   return QualTy;
 }
 
+/// getGCCCompatibleIntTypeForBitwidth -
+/// sets integer QualTy according to specified details:
+/// bitwidth, signed/unsigned.
+/// this function is compatible with GCC's preference:
+/// int > signed char > short > long > long long > int128_t
+/// Returns empty type if there is no appropriate target types.
+QualType ASTContext::getGCCCompatibleIntTypeForBitwidth(unsigned DestWidth,
+                                                        unsigned Signed) const {
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erichkeane wrote:

```suggestion
                                                        bool Signed) const {
```

https://github.com/llvm/llvm-project/pull/148954