Add ret type to convert-SampledImage builtin name (#2576)

Similar as ConvertHandleToImageINTEL, ConvertHandleToSampledImageINTEL
builtin may have the same argument type but different return types.
So we need to add ret type as name suffix when translating to LLVM IR.

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@04972917552b08e

Author: wenju-he

llvm-spirv/lib/SPIRV/SPIRVReader.cpp

@@ -3363,6 +3363,7 @@ Instruction *SPIRVToLLVM::transSPIRVBuiltinFromInst(SPIRVInstruction *BI,
   case internal::OpCooperativeMatrixLoadCheckedINTEL:
   case internal::OpTaskSequenceCreateINTEL:
   case internal::OpConvertHandleToImageINTEL:
+  case internal::OpConvertHandleToSampledImageINTEL:
     AddRetTypePostfix = true;
     break;
   default: {

llvm-spirv/test/extensions/INTEL/SPV_INTEL_bindless_images/bindless_images_generic.ll

@@ -30,7 +30,7 @@ target triple = "spir64-unknown-unknown"
 
 ; CHECK-LLVM: call spir_func target("spirv.Image", i64, 2, 0, 0, 0, 0, 0, 0) @_Z76__spirv_ConvertHandleToImageINTEL_RPU3AS133__spirv_Image__long_2_0_0_0_0_0_0m(i64 %{{.*}})
 ; CHECK-LLVM: call spir_func target("spirv.Sampler") @_Z35__spirv_ConvertHandleToSamplerINTELm(i64 42)
-; CHECK-LLVM: call spir_func target("spirv.SampledImage", i64, 1, 0, 0, 0, 0, 0, 0) @_Z40__spirv_ConvertHandleToSampledImageINTELm(i64 43)
+; CHECK-LLVM: call spir_func target("spirv.SampledImage", i64, 1, 0, 0, 0, 0, 0, 0) @_Z90__spirv_ConvertHandleToSampledImageINTEL_RPU3AS140__spirv_SampledImage__long_1_0_0_0_0_0_0m(i64 43)
 
 define spir_func void @foo(i64 %in) {
   %img = call spir_func target("spirv.Image", i64, 2, 0, 0, 0, 0, 0, 0) @_Z33__spirv_ConvertHandleToImageINTELl(i64 %in)