make printInstruction return void since its result is omitted.  Make the 
error condition get trapped with an assert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78449 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
index c817ee9..2d9aa0f 100644
--- a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
@@ -170,7 +170,7 @@
                                        const char *ExtraCode);
 
     void PrintGlobalVariable(const GlobalVariable* GVar);
-    bool printInstruction(const MachineInstr *MI);  // autogenerated.
+    void printInstruction(const MachineInstr *MI);  // autogenerated.
     void printMachineInstruction(const MachineInstr *MI);
     bool runOnMachineFunction(MachineFunction &F);
     bool doInitialization(Module &M);