[ELF][NFC] Do not pass region name to expandMemoryRegion()

[ikudrin]

Summary

The name can be easily got on-site.

[ikudrin]

• Adjusted after D114166 is committed

[MaskRay]

Thanks!

lld/ELF/LinkerScript.cpp

OutputSection *LinkerScript::getOrCreateOutputSection(StringRef name) {
   OutputSection *&cmdRef = nameToOutputSection[name];
   if (!cmdRef)
     cmdRef = make<OutputSection>(name, SHT_PROGBITS, 0);
   return cmdRef;
 }
 
 // Expands the memory region by the specified size.
 static void expandMemoryRegion(MemoryRegion *memRegion, uint64_t size,
-                               StringRef regionName, StringRef secName) {
+                               StringRef secName) {
   memRegion->curPos += size;
   uint64_t newSize = memRegion->curPos - (memRegion->origin)().getValue();
   uint64_t length = (memRegion->length)().getValue();
   if (newSize > length)
-    error("section '" + secName + "' will not fit in region '" + regionName +
-          "': overflowed by " + Twine(newSize - length) + " bytes");
+    error("section '" + secName + "' will not fit in region '" +
+          memRegion->name + "': overflowed by " + Twine(newSize - length) +
+          " bytes");
 }
 
 void LinkerScript::expandMemoryRegions(uint64_t size) {
   if (ctx->memRegion)
-    expandMemoryRegion(ctx->memRegion, size, ctx->memRegion->name,
-                       ctx->outSec->name);
+    expandMemoryRegion(ctx->memRegion, size, ctx->outSec->name);
   // Only expand the LMARegion if it is different from memRegion.
   if (ctx->lmaRegion && ctx->memRegion != ctx->lmaRegion)
-    expandMemoryRegion(ctx->lmaRegion, size, ctx->lmaRegion->name,
-                       ctx->outSec->name);
+    expandMemoryRegion(ctx->lmaRegion, size, ctx->outSec->name);
 }
 
 void LinkerScript::expandOutputSection(uint64_t size) {
   ctx->outSec->size += size;
   expandMemoryRegions(size);
 }
 
 void LinkerScript::setDot(Expr e, const Twine &loc, bool inSec) {
if (sec->addrExpr)
       setDot(sec->addrExpr, sec->location, false);
 
     // If the address of the section has been moved forward by an explicit
     // expression so that it now starts past the current curPos of the enclosing
     // region, we need to expand the current region to account for the space
     // between the previous section, if any, and the start of this section.
     if (ctx->memRegion && ctx->memRegion->curPos < dot)
       expandMemoryRegion(ctx->memRegion, dot - ctx->memRegion->curPos,
-                         ctx->memRegion->name, sec->name);
+                         sec->name);
   }
 
   switchTo(sec);
 
   // ctx->lmaOffset is LMA minus VMA. If LMA is explicitly specified via AT() or
   // AT>, recompute ctx->lmaOffset; otherwise, if both previous/current LMA
   // region is the default, and the two sections are in the same memory region,
   // reuse previous lmaOffset; otherwise, reset lmaOffset to 0. This emulates