[clang] [CIR] Add the ability to detect if SwitchOp covers all the cases (PR #171246)

[Jasmine Tang via cfe-commits]

================
@@ -1105,6 +1105,8 @@ mlir::LogicalResult CIRGenFunction::emitSwitchStmt(const clang::SwitchStmt &s) {
     terminateBody(builder, caseOp.getCaseRegion(), caseOp.getLoc());
   terminateBody(builder, swop.getBody(), swop.getLoc());
 
+  swop.setAllEnumCasesCovered(s.isAllEnumCasesCovered());
----------------
badumbatish wrote:

yep should be in now

https://github.com/llvm/llvm-project/pull/171246