Broaden hash loop definition to include shift counts in registers; PEASOUP bug 144.

SMPInstr.cpp

@@ -1749,6 +1749,10 @@ bool SMPInstr::MDIsHashingArithmetic(void) const {
 			uval_t CountValue = ShiftCountOp.value;
 			FoundHashShift = (CountValue >= STARS_HASH_SHIFT_THRESHOLD);
 		}
+		else {
+			// PEASOUP bug # 144: left shift count in CL reg, accumulates in checksum loop.
+			FoundHashShift = true;
+		}
 	}
 	return FoundHashShift;
 } // end of SMPInstr::MDIsHashingArithmetic()