Core: Shorten the _interpreterInstruction typedef

The class itself already acts as a namespace trailer, so '_interpreter'
isn't necessary. This also gets rid of a duplicate typedef in the
Interpreter_Tables.

Source/Core/Core/PowerPC/Interpreter/Interpreter.cpp

@@ -26,12 +26,12 @@ namespace
 bool Interpreter::m_EndBlock;
 
 // function tables
-Interpreter::_interpreterInstruction Interpreter::m_opTable[64];
-Interpreter::_interpreterInstruction Interpreter::m_opTable4[1024];
-Interpreter::_interpreterInstruction Interpreter::m_opTable19[1024];
-Interpreter::_interpreterInstruction Interpreter::m_opTable31[1024];
-Interpreter::_interpreterInstruction Interpreter::m_opTable59[32];
-Interpreter::_interpreterInstruction Interpreter::m_opTable63[1024];
+Interpreter::Instruction Interpreter::m_opTable[64];
+Interpreter::Instruction Interpreter::m_opTable4[1024];
+Interpreter::Instruction Interpreter::m_opTable19[1024];
+Interpreter::Instruction Interpreter::m_opTable31[1024];
+Interpreter::Instruction Interpreter::m_opTable59[32];
+Interpreter::Instruction Interpreter::m_opTable63[1024];
 
 void Interpreter::RunTable4(UGeckoInstruction _inst)  { m_opTable4 [_inst.SUBOP10](_inst); }
 void Interpreter::RunTable19(UGeckoInstruction _inst) { m_opTable19[_inst.SUBOP10](_inst); }

Source/Core/Core/PowerPC/Interpreter/Interpreter.h

@@ -273,13 +273,13 @@ public:
 	static void sync(UGeckoInstruction _inst);
 	static void isync(UGeckoInstruction _inst);
 
-	typedef void(*_interpreterInstruction)(UGeckoInstruction instCode);
-	static _interpreterInstruction m_opTable[64];
-	static _interpreterInstruction m_opTable4[1024];
-	static _interpreterInstruction m_opTable19[1024];
-	static _interpreterInstruction m_opTable31[1024];
-	static _interpreterInstruction m_opTable59[32];
-	static _interpreterInstruction m_opTable63[1024];
+	using Instruction = void (*)(UGeckoInstruction instCode);
+	static Instruction m_opTable[64];
+	static Instruction m_opTable4[1024];
+	static Instruction m_opTable19[1024];
+	static Instruction m_opTable31[1024];
+	static Instruction m_opTable59[32];
+	static Instruction m_opTable63[1024];
 
 	// singleton
 	static Interpreter* getInstance();

Source/Core/Core/PowerPC/Interpreter/Interpreter_Tables.cpp

@@ -4,12 +4,10 @@
 
 #include "Core/PowerPC/Interpreter/Interpreter_Tables.h"
 
-typedef void (*_Instruction) (UGeckoInstruction instCode);
-
 struct GekkoOPTemplate
 {
 	int opcode;
-	_Instruction Inst;
+	Interpreter::Instruction Inst;
 	GekkoOPInfo opinfo;
 };