[lld] [lld][test][PAC] Do not rely on concrete offsets in LTO tests (PR #143358)

[Fangrui Song via llvm-commits]

================
@@ -6,26 +6,26 @@
 
 ; CHECK:      Relocation section '.rela.dyn' at offset 0x3d0 contains 8 entries:
 ; CHECK-NEXT:     Offset             Info             Type               Symbol's Value  Symbol's Name + Addend
-; CHECK-NEXT: 00000000000206a0  0000000100000412 R_AARCH64_AUTH_GLOB_DAT 0000000000000000 func_undef + 0
-; CHECK-NEXT: 00000000000206a8  0000000200000412 R_AARCH64_AUTH_GLOB_DAT 0000000000000000 g1 + 0
-; CHECK-NEXT: 00000000000206b0  0000000300000412 R_AARCH64_AUTH_GLOB_DAT 0000000000000000 g2 + 0
-; CHECK-NEXT: 00000000000206b8  0000000400000412 R_AARCH64_AUTH_GLOB_DAT 0000000000000000 g3 + 0
-; CHECK-NEXT: 00000000000206c0  0000000500000412 R_AARCH64_AUTH_GLOB_DAT 0000000000000000 g4 + 0
-; CHECK-NEXT: 00000000000206c8  0000000600000412 R_AARCH64_AUTH_GLOB_DAT 0000000000000000 var_undef + 0
-; CHECK-NEXT: 0000000000020690  0000000700000412 R_AARCH64_AUTH_GLOB_DAT 0000000000010490 func + 0
-; CHECK-NEXT: 0000000000020698  0000000a00000412 R_AARCH64_AUTH_GLOB_DAT 00000000000306d0 var + 0
+; CHECK-NEXT: 00000000000210b8  0000000100000412 R_AARCH64_AUTH_GLOB_DAT 0000000000000000 func_undef + 0
----------------
MaskRay wrote:

Can use
```
[[#%x, ADDR:]]
{{0*}}[[#ADDR+0x8]]
```

so that the next time we change addresses, we only need to change one line.

https://github.com/llvm/llvm-project/pull/143358