[NFC] Remove ostream argument from SILBasicBlock::print.

The first argument, OS, was never used in the SILBasicBlock::print method. Keeping it would be misleading.

Author: zoecarver

include/swift/SIL/SILBasicBlock.h

@@ -402,8 +402,8 @@ public llvm::ilist_node<SILBasicBlock>, public SILAllocated<SILBasicBlock> {
   /// Pretty-print the SILBasicBlock with the designated stream.
   void print(llvm::raw_ostream &OS) const;
 
-  /// Pretty-print the SILBasicBlock with the designated stream and context.
-  void print(llvm::raw_ostream &OS, SILPrintContext &Ctx) const;
+  /// Pretty-print the SILBasicBlock with the designated context.
+  void print(SILPrintContext &Ctx) const;
 
   void printAsOperand(raw_ostream &OS, bool PrintType = true);
 

lib/SIL/IR/SILPrinter.cpp

@@ -2452,7 +2452,7 @@ void SILBasicBlock::print(raw_ostream &OS) const {
   SILPrinter(Ctx).print(this);
 }
 
-void SILBasicBlock::print(raw_ostream &OS, SILPrintContext &Ctx) const {
+void SILBasicBlock::print(SILPrintContext &Ctx) const {
   SILPrinter(Ctx).print(this);
 }
 

lib/SILOptimizer/Transforms/RedundantLoadElimination.cpp

@@ -1393,7 +1393,7 @@ void RLEContext::processBasicBlocksForGenKillSet() {
   for (SILBasicBlock *BB : PO->getReversePostOrder()) {
     LLVM_DEBUG(llvm::dbgs() << "PROCESS " << printCtx.getID(BB)
                             << " for Gen/Kill:\n";
-               BB->print(llvm::dbgs(), printCtx));
+               BB->print(printCtx));
 
     BlockState &S = getBlockState(BB);