Add binary compares, some unary ops, fix binary arithmetic, add plain for loop.

src/main/java/lua/value/LInteger.java

@@ -40,4 +40,32 @@ public class LInteger extends LNumber {
 	public LValue luaBinOpDouble(int opcode, double rhs) {
 		return LDouble.luaBinOpDoubleDouble(opcode, (double) m_value, rhs );
 	}
+	
+	// binary compare for integers, first dispatch
+	public boolean luaBinCmpUnknown(int opcode, LValue lhs) {
+		return lhs.luaBinCmpInteger( opcode, this.m_value );
+	}
+	
+	// unsupported except for numbers
+	public boolean luaBinCmpInteger(int opcode, int rhs) {
+		switch ( opcode ) {
+		case Lua.OP_EQ: return m_value == rhs;
+		case Lua.OP_LT: return m_value < rhs;
+		case Lua.OP_LE: return m_value <= rhs;
+		}
+		luaUnsupportedOperation();
+		return false;
+	}
+	
+	// unsupported except for numbers
+	public boolean luaBinCmpDouble(int opcode, double rhs) {
+		return LDouble.luaBinCmpDoubleDouble(opcode, (double) m_value, rhs );
+	}
+
+	/** Arithmetic negative */
+	public LValue luaUnaryMinus() {
+		return new LInteger( -m_value );
+	}
+
+
 }