ObjectFile: Add a method to check whether a section contains a symbol.

- No ELF or COFF implementation yet, I don't have a way to test that.
  Should be straightforward to add though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135288 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Object/ELFObjectFile.cpp b/lib/Object/ELFObjectFile.cpp
index edf9824..e2ff4df 100644
--- a/lib/Object/ELFObjectFile.cpp
+++ b/lib/Object/ELFObjectFile.cpp
@@ -235,6 +235,8 @@
   virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
   virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
   virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
+  virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
+                                           bool &Result) const;
 
 public:
   ELFObjectFile(MemoryBuffer *Object, error_code &ec);
@@ -496,6 +498,16 @@
 }
 
 template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+                          ::sectionContainsSymbol(DataRefImpl Sec,
+                                                  DataRefImpl Symb,
+                                                  bool &Result) const {
+  // FIXME: Unimplemented.
+  Result = false;
+  return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
 ELFObjectFile<target_endianness, is64Bits>::ELFObjectFile(MemoryBuffer *Object
                                                           , error_code &ec)
   : ObjectFile(Binary::isELF, Object, ec)