[CIR] Un-xfail variadic calls (#1517)

This un-xfails the 6 files in #1497 related to variadic calls.

Author: AdUhTkJm

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

@@ -2369,7 +2369,7 @@ ParseResult cir::FuncOp::parse(OpAsmParser &parser, OperationState &state) {
   // Parse the function signature.
   bool isVariadic = false;
   if (function_interface_impl::parseFunctionSignatureWithArguments(
-          parser, /*allowVariadic=*/false, arguments, isVariadic, resultTypes,
+          parser, /*allowVariadic=*/true, arguments, isVariadic, resultTypes,
           resultAttrs))
     return failure();
 

clang/test/CIR/IR/func.cir

@@ -1,5 +1,4 @@
 // RUN: cir-opt %s | FileCheck %s
-// XFAIL: * 
 
 !s32i = !cir.int<s, 32>
 !u8i = !cir.int<u, 8>

clang/test/CIR/IR/invalid.cir

@@ -1,6 +1,5 @@
 // Test attempts to build bogus CIR
 // RUN: cir-opt %s -verify-diagnostics -split-input-file
-// XFAIL: *
 
 !u32i = !cir.int<u, 32>
 

clang/test/CIR/Lowering/func.cir

@@ -1,6 +1,5 @@
 // RUN: cir-opt %s -cir-to-llvm -o %t.mlir
 // RUN: FileCheck %s -check-prefix=MLIR --input-file=%t.mlir
-// XFAIL: *
 
 !s32i = !cir.int<s, 32>
 module {

clang/test/CIR/Lowering/hello.cir

@@ -1,6 +1,5 @@
 // RUN: cir-opt %s -cir-to-llvm -o %t.mlir
 // RUN: FileCheck --input-file=%t.mlir %s
-// XFAIL: *
 
 !s32i = !cir.int<s, 32>
 !s8i = !cir.int<s, 8>

clang/test/CIR/Lowering/variadics.cir

@@ -1,6 +1,5 @@
 // RUN: cir-opt %s -cir-to-llvm -o %t.cir
 // RUN: FileCheck --input-file=%t.cir %s -check-prefix=MLIR
-// XFAIL: *
 
 !s32i = !cir.int<s, 32>
 !u32i = !cir.int<u, 32>