COFF: Do not use VirtualSize section header field for directive sections.

Looks like clang-cl sets a bogus value to the field, which makes
getSectionContents() to truncate section contents. This patch directly
uses SizeOfRawData field instead of VirtualSize to see if this can
make buildbot green.

llvm-svn: 241386

lld/COFF/InputFiles.cpp

@@ -136,7 +136,8 @@ std::error_code ObjectFile::initializeChunks() {
     if (Name == ".drectve") {
       ArrayRef<uint8_t> Data;
       COFFObj->getSectionContents(Sec, Data);
-      Directives = std::string((const char *)Data.data(), Data.size());
+      Directives = std::string((const char *)Data.data(),
+                               Sec->SizeOfRawData);
       continue;
     }
     if (Name.startswith(".debug"))