[AsmPrinter] De-capitalize all AsmPrinter::Emit* but EmitInstruction

Similar to rL328848.
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
index 02942a0..3e2c5a5 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
@@ -276,7 +276,7 @@
   AsmPrinter::emitBasicBlockStart(MBB);
 }
 
-void AMDGPUAsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
+void AMDGPUAsmPrinter::emitGlobalVariable(const GlobalVariable *GV) {
   if (GV->getAddressSpace() == AMDGPUAS::LOCAL_ADDRESS) {
     if (GV->hasInitializer() && !isa<UndefValue>(GV->getInitializer())) {
       OutContext.reportError({},
@@ -310,7 +310,7 @@
     return;
   }
 
-  AsmPrinter::EmitGlobalVariable(GV);
+  AsmPrinter::emitGlobalVariable(GV);
 }
 
 bool AMDGPUAsmPrinter::doFinalization(Module &M) {