[llvm] [XCOFF][OBJECT] get symbol size by calling XCOFF interfaces (PR #67304)

[James Henderson via llvm-commits]

================
@@ -787,6 +794,14 @@ class XCOFFSymbolRef {
 
   uint64_t getValue64() const { return Entry64->Value; }
 
+  const XCOFFObjectFile *getObject() const {
+    return cast<XCOFFObjectFile>(BasicSymbolRef::getObject());
+  }
----------------
jh7370 wrote:

Does this actually need to be a public method? Does it need to be a separate method at all in fact?

https://github.com/llvm/llvm-project/pull/67304