Reapply "DebugInfo: Loosen DILexicalBlock constructor"

This reverts commit r234225, reapplying r234222 in spirit.

This time, just include what the commit message actually describes:
loosen the `DILexicalBlock` constructor to require a
`MDLexicalBlockBase`, since that's what `DILexicalBlock` is wrapping.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234241 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/IR/DebugInfo.h b/include/llvm/IR/DebugInfo.h
index 2fa68982ac8638fae6550e124a7999da81c40ff0..c204058763334a42014979ed3b10c5f81125ef5a 100644 (file)
--- a/include/llvm/IR/DebugInfo.h
+++ b/include/llvm/IR/DebugInfo.h
@@ -704,7 +704,7 @@ public:
 class DILexicalBlock : public DIScope {
 public:
   explicit DILexicalBlock(const MDNode *N = nullptr) : DIScope(N) {}
-  DILexicalBlock(const MDLexicalBlock *N) : DIScope(N) {}
+  DILexicalBlock(const MDLexicalBlockBase *N) : DIScope(N) {}
 
   MDLexicalBlockBase *get() const {
     return cast_or_null<MDLexicalBlockBase>(DIDescriptor::get());