LLD incorrectly reports 'there is a cycle in linker script INCLUDEs' error when a linker script is included multiple times (but there is no cycle). Reproducible example:

```bash
#!/usr/bin/env bash

cat > incrementDotBy100.t \EOF
  . = . + 100;
EOF

cat >1.t <<\EOF
SECTIONS {
  FOO : {
    *(*foo*)
    INCLUDE incrementDotBy100.t
  }
  BAR : {
    *(*bar*)
    INCLUDE incrementDotBy100.t
  }
}
EOF

touch 1.c
clang-15 -o 1.o 1.c -c
ld.lld -o 1.elf 1.o -T 1.t
```

Output:
```
ld.lld: error: 1.t:8: there is a cycle in linker script INCLUDEs
>>>     INCLUDE incrementDotBy100.t
>>> 
```
[LLD] Invalid 'there is a cycle in linker script INCLUDEs' error
This is a GitHub Issue
repo:llvm-project
owner:llvm
Title : [LLD] Invalid 'there is a cycle in linker script INCLUDEs' error
Issue date:

--- start body ---
LLD incorrectly reports 'there is a cycle in linker script INCLUDEs' error when a linker script is included multiple times (but there is no cycle). Reproducible example:

```bash
#!/usr/bin/env bash

cat > incrementDotBy100.t \EOF
  . = . + 100;
EOF

cat >1.t <<\EOF
SECTIONS {
  FOO : {
    *(*foo*)
    INCLUDE incrementDotBy100.t
  }
  BAR : {
    *(*bar*)
    INCLUDE incrementDotBy100.t
  }
}
EOF

touch 1.c
clang-15 -o 1.o 1.c -c
ld.lld -o 1.elf 1.o -T 1.t
```

Output:
```
ld.lld: error: 1.t:8: there is a cycle in linker script INCLUDEs
>>>     INCLUDE incrementDotBy100.t
>>> 
```
--- end body ---

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