Rename catch_regions to handlers to act as general eh regions

Author: AmrDeveloper

clang/include/clang/CIR/Dialect/IR/CIROps.td

@@ -4342,14 +4342,14 @@ def CIR_TryOp : CIR_Op<"try",[
 
   let regions = (region
     AnyRegion:$try_region,
-    VariadicRegion<MinSizedRegion<1>>:$catch_regions
+    VariadicRegion<MinSizedRegion<1>>:$handlers
   );
 
   let assemblyFormat = [{
     (`synthetic` $synthetic^)?
     (`cleanup` $cleanup^)?
     $try_region
-    custom<CatchRegions>($catch_regions, $catch_types)
+    custom<CatchRegions>($handlers, $catch_types)
     attr-dict
   }];
 

clang/lib/CIR/Dialect/IR/CIRDialect.cpp

@@ -2895,8 +2895,8 @@ void cir::TryOp::getSuccessorRegions(
 
   // TODO(CIR): If we know a target function never throws a specific type, we
   // can remove the catch handler.
-  for (mlir::Region &region : this->getCatchRegions())
-    regions.push_back(mlir::RegionSuccessor(&region));
+  for (mlir::Region &handler : this->getHandlers())
+    regions.push_back(mlir::RegionSuccessor(&handler));
 }
 
 static void printCatchRegions(mlir::OpAsmPrinter &printer, cir::TryOp op,