disambiguate symbols for Transl killing

I got stuck while trying to kill the `Transl` namespace, but these were the 'by-hand' changes I did before I got stuck. They get us closer so I think doing them will be helpful regardless.

Most were making longer names, but I also had to kill `Immed` (since there was another `Immed`in the other namespace). Originally I renamed it, but since them someone killed the last use of it.

hphp/runtime/vm/jit/codegen.cpp

@@ -1041,9 +1041,6 @@ void CodeGenerator::cgCallNative(Asm& a, IRInstruction* inst) {
       case VecKeyIS:
         argGroup.vectorKeyIS(src);
         break;
-      case Immed:
-        always_assert(0 && "We can't generate a native call for this");
-        break;
     }
   }
 

hphp/runtime/vm/jit/linearscan.cpp

@@ -769,8 +769,6 @@ void LinearScan::computePreColoringHint() {
           m_preColoringHint.add(inst->src(arg.srcIdx), 0, reg++);
           m_preColoringHint.add(inst->src(arg.srcIdx), 1, reg++);
           break;
-        case Immed:
-          break;
       }
     }
     return;

hphp/runtime/vm/jit/nativecalls.cpp

@@ -65,8 +65,6 @@ static const DestType DNone = DestType::None;
  *     {VecKeyS, idx} - Like TV, but Str values are passed as a raw
  *                      StringData*, in a single register
  *     {VecKeyIS, idx} - Like VecKeyS, including Int
- *     {Immed} - There's no precoloring to do here, an internal immediate is
- *               used in cgFoo for this function
  */
 static CallMap s_callMap({
     /* Opcode, Func, Dest, SyncPoint, Args */

hphp/runtime/vm/jit/nativecalls.h

@@ -51,7 +51,6 @@ enum ArgType : unsigned {
   TV,
   VecKeyS,
   VecKeyIS,
-  Immed,
 };
 struct Arg {
   ArgType type;

hphp/runtime/vm/jit/translator-x64.cpp

@@ -323,7 +323,7 @@ void TranslatorX64::emitDebugPrint(Asm& a,
 
 void
 TranslatorX64::emitRB(X64Assembler& a,
-                      RingBufferType t,
+                      Trace::RingBufferType t,
                       SrcKey sk, RegSet toSave) {
   if (!Trace::moduleEnabledRelease(Trace::tx64, 3)) {
     return;
@@ -338,7 +338,7 @@ TranslatorX64::emitRB(X64Assembler& a,
 
 void
 TranslatorX64::emitRB(X64Assembler& a,
-                      RingBufferType t,
+                      Trace::RingBufferType t,
                       const char* msg,
                       RegSet toSave) {
   if (!Trace::moduleEnabledRelease(Trace::tx64, 3)) {

hphp/runtime/vm/jit/translator-x64.h

@@ -32,7 +32,7 @@
 
 namespace HPHP { class ExecutionContext; }
 
-namespace HPHP {  namespace JIT {
+namespace HPHP { namespace JIT {
 class HhbcTranslator;
 class IRFactory;
 class CSEHash;

hphp/runtime/vm/jit/translator.cpp

@@ -1060,7 +1060,7 @@ struct InstrInfo {
 };
 
 static const struct {
-  Opcode    op;
+  Opcode op;
   InstrInfo info;
 } instrInfoSparse [] = {