[lldb][Symtab][NFCI] Replace vector::swap with shrink_to_fit

[Michael137]

Replaces the old idiom (of swapping the container to shrink it) with the newer STL alternative.

Similar transition in LLDB was done in: https://reviews.llvm.org/D47492

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Michael Buch (Michael137)

Changes

Replaces the old idiom of swapping the container to shrink it, with the newer STL alternative.

Similar transition in LLDB was done in: https://reviews.llvm.org/D47492

---

Full diff: https://github.com/llvm/llvm-project/pull/70918.diff

1 Files Affected:

• (modified) lldb/source/Symbol/Symtab.cpp (+1-4)

diff --git a/lldb/source/Symbol/Symtab.cpp b/lldb/source/Symbol/Symtab.cpp
index 104faac38ffa0fe..1aebe198f9e78ae 100644
--- a/lldb/source/Symbol/Symtab.cpp
+++ b/lldb/source/Symbol/Symtab.cpp
@@ -1010,10 +1010,7 @@ void Symtab::Finalize() {
   // Calculate the size of symbols inside InitAddressIndexes.
   InitAddressIndexes();
   // Shrink to fit the symbols so we don't waste memory
-  if (m_symbols.capacity() > m_symbols.size()) {
-    collection new_symbols(m_symbols.begin(), m_symbols.end());
-    m_symbols.swap(new_symbols);
-  }
+  m_symbols.shrink_to_fit();
   SaveToCache();
 }
 

[DavidSpickett]

LGTM