FILE fqName:<root> fileName:/whenReturn.kt
  FUN name:toString visibility:public modality:FINAL <> (grade:kotlin.String) returnType:kotlin.String flags:[]
    VALUE_PARAMETER name:grade index:0 type:kotlin.String flags:[]
    BLOCK_BODY
      BLOCK type=kotlin.Nothing origin=WHEN
        VAR IR_TEMPORARY_VARIABLE name:tmp0_subject type:kotlin.String flags:[val]
          GET_VAR 'VALUE_PARAMETER name:grade index:0 type:kotlin.String flags:[]' type=kotlin.String origin=null
        WHEN type=kotlin.Nothing origin=WHEN
          BRANCH
            if: CALL 'FUN IR_BUILTINS_STUB name:EQEQ visibility:public modality:FINAL <> (arg0:kotlin.Any?, arg1:kotlin.Any?) returnType:kotlin.Boolean flags:[]' type=kotlin.Boolean origin=EQEQ
              arg0: GET_VAR 'VAR IR_TEMPORARY_VARIABLE name:tmp0_subject type:kotlin.String flags:[val]' type=kotlin.String origin=null
              arg1: CONST String type=kotlin.String value="A"
            then: RETURN type=kotlin.Nothing from='FUN name:toString visibility:public modality:FINAL <> (grade:kotlin.String) returnType:kotlin.String flags:[]'
              CONST String type=kotlin.String value="Excellent"
          BRANCH
            if: CALL 'FUN IR_BUILTINS_STUB name:EQEQ visibility:public modality:FINAL <> (arg0:kotlin.Any?, arg1:kotlin.Any?) returnType:kotlin.Boolean flags:[]' type=kotlin.Boolean origin=EQEQ
              arg0: GET_VAR 'VAR IR_TEMPORARY_VARIABLE name:tmp0_subject type:kotlin.String flags:[val]' type=kotlin.String origin=null
              arg1: CONST String type=kotlin.String value="B"
            then: RETURN type=kotlin.Nothing from='FUN name:toString visibility:public modality:FINAL <> (grade:kotlin.String) returnType:kotlin.String flags:[]'
              CONST String type=kotlin.String value="Good"
          BRANCH
            if: CALL 'FUN IR_BUILTINS_STUB name:EQEQ visibility:public modality:FINAL <> (arg0:kotlin.Any?, arg1:kotlin.Any?) returnType:kotlin.Boolean flags:[]' type=kotlin.Boolean origin=EQEQ
              arg0: GET_VAR 'VAR IR_TEMPORARY_VARIABLE name:tmp0_subject type:kotlin.String flags:[val]' type=kotlin.String origin=null
              arg1: CONST String type=kotlin.String value="C"
            then: RETURN type=kotlin.Nothing from='FUN name:toString visibility:public modality:FINAL <> (grade:kotlin.String) returnType:kotlin.String flags:[]'
              CONST String type=kotlin.String value="Mediocre"
          BRANCH
            if: CALL 'FUN IR_BUILTINS_STUB name:EQEQ visibility:public modality:FINAL <> (arg0:kotlin.Any?, arg1:kotlin.Any?) returnType:kotlin.Boolean flags:[]' type=kotlin.Boolean origin=EQEQ
              arg0: GET_VAR 'VAR IR_TEMPORARY_VARIABLE name:tmp0_subject type:kotlin.String flags:[val]' type=kotlin.String origin=null
              arg1: CONST String type=kotlin.String value="D"
            then: RETURN type=kotlin.Nothing from='FUN name:toString visibility:public modality:FINAL <> (grade:kotlin.String) returnType:kotlin.String flags:[]'
              CONST String type=kotlin.String value="Fair"
          BRANCH
            if: CONST Boolean type=kotlin.Boolean value=true
            then: RETURN type=kotlin.Nothing from='FUN name:toString visibility:public modality:FINAL <> (grade:kotlin.String) returnType:kotlin.String flags:[]'
              CONST String type=kotlin.String value="Failure"
      RETURN type=kotlin.Nothing from='FUN name:toString visibility:public modality:FINAL <> (grade:kotlin.String) returnType:kotlin.String flags:[]'
        CONST String type=kotlin.String value="???"
