Clarify default return for INFO_IL in spec.

Author: aarongreig

include/ur_api.h

@@ -4405,7 +4405,8 @@ typedef enum ur_program_info_t {
                                          ///< This is either the list of devices associated with the context or a
                                          ///< subset of those devices when the program is created using ::urProgramCreateWithBinary.
     UR_PROGRAM_INFO_IL = 4,              ///< [char[]] Return program IL if the program was created with
-                                         ///< ::urProgramCreateWithIL
+                                         ///< ::urProgramCreateWithIL, otherwise return size will be set to 0 and
+                                         ///< nothing will be returned.
     UR_PROGRAM_INFO_BINARY_SIZES = 5,    ///< [size_t[]] Return program binary sizes for each device.
     UR_PROGRAM_INFO_BINARIES = 6,        ///< [unsigned char[]] Return program binaries for all devices for this
                                          ///< Program.

scripts/core/program.yml

@@ -371,7 +371,7 @@ etors:
           [$x_device_handle_t[]] Return list of devices associated with a program.
           This is either the list of devices associated with the context or a subset of those devices when the program is created using $xProgramCreateWithBinary.
     - name: IL
-      desc: "[char[]] Return program IL if the program was created with $xProgramCreateWithIL"
+      desc: "[char[]] Return program IL if the program was created with $xProgramCreateWithIL, otherwise return size will be set to 0 and nothing will be returned."
     - name: BINARY_SIZES
       desc: "[size_t[]] Return program binary sizes for each device."
     - name: BINARIES

test/conformance/program/program_adapter_cuda.match

@@ -11,6 +11,7 @@ urProgramBuildTest.BuildFailure/NVIDIA_CUDA_BACKEND___{{.*}}_
 {{OPT}}urProgramGetBuildInfoTest.InvalidNullHandleDevice/NVIDIA_CUDA_BACKEND___{{.*}}___UR_PROGRAM_BUILD_INFO_LOG
 {{OPT}}urProgramGetBuildInfoTest.InvalidNullHandleDevice/NVIDIA_CUDA_BACKEND___{{.*}}___UR_PROGRAM_BUILD_INFO_BINARY_TYPE
 {{OPT}}urProgramGetBuildInfoSingleTest.LogIsNullTerminated/NVIDIA_CUDA_BACKEND___{{.*}}_
+{{OPT}}urProgramGetInfoTest.Success/NVIDIA_CUDA_BACKEND___{{.*}}___UR_PROGRAM_INFO_IL
 {{OPT}}urProgramGetInfoTest.Success/NVIDIA_CUDA_BACKEND___{{.*}}___UR_PROGRAM_INFO_NUM_KERNELS
 {{OPT}}urProgramGetInfoTest.Success/NVIDIA_CUDA_BACKEND___{{.*}}___UR_PROGRAM_INFO_KERNEL_NAMES
 {{OPT}}urProgramGetInfoTest.InvalidNullHandleProgram/NVIDIA_CUDA_BACKEND___{{.*}}___UR_PROGRAM_INFO_REFERENCE_COUNT

test/conformance/program/program_adapter_hip.match

@@ -11,6 +11,7 @@ urProgramBuildTest.BuildFailure/AMD_HIP_BACKEND___{{.*}}_
 {{OPT}}urProgramGetBuildInfoTest.InvalidNullHandleDevice/AMD_HIP_BACKEND___{{.*}}___UR_PROGRAM_BUILD_INFO_LOG
 {{OPT}}urProgramGetBuildInfoTest.InvalidNullHandleDevice/AMD_HIP_BACKEND___{{.*}}___UR_PROGRAM_BUILD_INFO_BINARY_TYPE
 {{OPT}}urProgramGetBuildInfoSingleTest.LogIsNullTerminated/AMD_HIP_BACKEND___{{.*}}_
+{{OPT}}urProgramGetInfoTest.Success/AMD_HIP_BACKEND___{{.*}}___UR_PROGRAM_INFO_IL
 {{OPT}}urProgramGetInfoTest.Success/AMD_HIP_BACKEND___{{.*}}___UR_PROGRAM_INFO_NUM_KERNELS
 {{OPT}}urProgramGetInfoTest.Success/AMD_HIP_BACKEND___{{.*}}___UR_PROGRAM_INFO_KERNEL_NAMES
 {{OPT}}urProgramGetInfoTest.InvalidNullHandleProgram/AMD_HIP_BACKEND___{{.*}}___UR_PROGRAM_INFO_REFERENCE_COUNT