[lld] [LLD] Improve linker script handing in LLD (PR #106334)

[Hongyu Chen via llvm-commits]

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@@ -161,8 +264,12 @@ struct MemoryRegion {
   uint32_t negInvFlags;
   uint64_t curPos = 0;
 
-  uint64_t getOrigin() const { return origin().getValue(); }
-  uint64_t getLength() const { return length().getValue(); }
+  uint64_t getOrigin() const {
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yugier wrote:

Thank you for the review! I removed the precondition and added assert for `origin` and `length`. Yes I think they should not be `nullptr` since they are passed in the constructor but still have to make sure that they are not passed in as `nullptr` so an assert would be perfect here.

https://github.com/llvm/llvm-project/pull/106334