[lld] [LLD] Implement --enable-non-contiguous-regions (PR #90007)

[Peter Smith via llvm-commits]

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@@ -1364,6 +1432,107 @@ const Defined *LinkerScript::assignAddresses() {
   return getChangedSymbolAssignment(oldValues);
 }
 
+static bool isRegionOverflowed(MemoryRegion *mr) {
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smithp35 wrote:

Would `hasRegionOverflowed` be a better name. We have a few uses of that form.

https://github.com/llvm/llvm-project/pull/90007