[clang] [CIR] Upstream initial for-loop support (PR #132266)

[Andy Kaylor via cfe-commits]

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@@ -165,6 +165,25 @@ LValue CIRGenFunction::emitDeclRefLValue(const DeclRefExpr *e) {
   return LValue();
 }
 
+mlir::Value CIRGenFunction::evaluateExprAsBool(const Expr *e) {
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andykaylor wrote:

I'm not sure `Bool` is ever used to represent an `i8`. Typically there's a call to `convertForMemory` or something similar that checks for `Bool` and returns an `i8`.

https://github.com/llvm/llvm-project/pull/132266