missing opportunities in constant folding around bitwise ops

src/coreclr/jit/compiler.h

@@ -83,6 +83,7 @@ class SpanningTreeVisitor; // defined in fgprofile.cpp
 class CSE_DataFlow;        // defined in optcse.cpp
 struct CSEdsc;             // defined in optcse.h
 class CSE_HeuristicCommon; // defined in optcse.h
+class IntBoolOpDsc;        // defined in optimizer.cpp
 class OptBoolsDsc;         // defined in optimizer.cpp
 struct JumpThreadInfo;     // defined in redundantbranchopts.cpp
 class ProfileSynthesis;    // defined in profilesynthesis.h
@@ -5423,6 +5424,7 @@ class Compiler
     FoldResult fgFoldConditional(BasicBlock* block);
 
     bool fgFoldCondToReturnBlock(BasicBlock* block);
+    bool TryOptimizeIntBoolOp(BasicBlock* block);
 
     struct MorphUnreachableInfo
     {