[PDB] Add the ability to lookup global symbols by name.

The Globals table is a hash table keyed on symbol name, so
it's possible to lookup symbols by name in O(1) time.  Add
a function to the globals stream to do this, and add an option
to llvm-pdbutil to exercise this, then use it to write some
tests to verify correctness.

llvm-svn: 343951

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/DebugInfo/PDB/Native/DbiStream.cpp b/llvm/lib/DebugInfo/PDB/Native/DbiStream.cpp
index edaa783398c..60ac17b655a 100644
--- a/llvm/lib/DebugInfo/PDB/Native/DbiStream.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/DbiStream.cpp
@@ -197,7 +197,7 @@ PDB_Machine DbiStream::getMachineType() const {
   return static_cast<PDB_Machine>(Machine);
 }
 
-FixedStreamArray<object::coff_section> DbiStream::getSectionHeaders() {
+FixedStreamArray<object::coff_section> DbiStream::getSectionHeaders() const {
   return SectionHeaders;
 }