[FileSystem] Remove GetByteSize() from FileSpec

This patch removes the GetByteSize method from FileSpec and updates its
uses with calls to the FileSystem.

Differential revision: https://reviews.llvm.org/D53788

llvm-svn: 345812

lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp

@@ -18,6 +18,7 @@
 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Core/PluginManager.h"
 #include "lldb/Core/Section.h"
+#include "lldb/Host/FileSystem.h"
 #include "lldb/Symbol/DWARFCallFrameInfo.h"
 #include "lldb/Symbol/SymbolContext.h"
 #include "lldb/Target/SectionLoadList.h"
@@ -713,7 +714,8 @@ size_t ObjectFileELF::GetModuleSpecifications(
                   func_cat,
                   "Calculating module crc32 %s with size %" PRIu64 " KiB",
                   file.GetLastPathComponent().AsCString(),
-                  (file.GetByteSize() - file_offset) / 1024);
+                  (FileSystem::Instance().GetByteSize(file) - file_offset) /
+                      1024);
 
               // For core files - which usually don't happen to have a
               // gnu_debuglink, and are pretty bulky - calculating whole