corrected issue in table setup and check

the loop that determines expected data type from the associated codes
needed to check that the second associated index was not -1 (which
indicates that there is no second associated index); also, the check
if the associated code has an expression information structure was
made permanent since not all associated codes have this structure

the associated codes were removed from the AssignList code since they
are not needed for the letTranslate()

table.cpp

@@ -198,9 +198,6 @@ static Code Assign_AssocCode[]			= {
 	AssignInt_Code, AssignStr_Code, AssignList_Code
 };
 static Code AssignLeft_AssocCode[]		= {AssignKeepLeft_Code};
-static Code AssignList_AssocCode[]		= {
-	AssignListInt_Code, AssignListStr_Code
-};
 static Code AssignInt_AssocCode[]		= {AssignListInt_Code};
 static Code AssignMid2_AssocCode[]		= {AssignKeepMid2_Code};
 static Code AssignMid3_AssocCode[]		= {AssignKeepMid3_Code};
@@ -750,8 +747,7 @@ static TableEntry tableEntries[] =
 	},
 	{	// AssignList_Code
 		Operator_TokenType, OneWord_Multiple,
-		"=", "AssignList", Reference_Flag, 4, Double_DataType,
-		new ExprInfo(Null_Code, Operands(DblDbl), AssocCode2(AssignList, 2))
+		"=", "AssignList", Reference_Flag, 4, Double_DataType, &DblDbl_ExprInfo
 	},
 	{	// AssignListInt_Code
 		Operator_TokenType, OneWord_Multiple,
@@ -1217,21 +1213,27 @@ QStringList Table::setupAndCheck(void)
 				{
 					int bitMask = bitMaskDataType[exprInfo->m_expectedDataType];
 					int index = exprInfo->m_assoc2Index;
-					for (; index < exprInfo->m_nAssocCodes; index++)
-					{
-						Code assocCode = exprInfo->m_assocCode[index];
-						ExprInfo *exprInfo2 = m_entry[assocCode].exprInfo;
-						if (exprInfo2 != NULL)  // FIXME - remove this
-						bitMask |= bitMaskDataType[exprInfo2
-							->m_operandDataType[exprInfo2->m_nOperands - 1]];
-					}
-					if (bitMask == Num_BitMask)
-					{
-						exprInfo->m_expectedDataType = Number_DataType;
-					}
-					else if (bitMask == Any_BitMask)
+					if (index >= 0)
 					{
-						exprInfo->m_expectedDataType = Any_DataType;
+						for (; index < exprInfo->m_nAssocCodes; index++)
+						{
+							Code assocCode = exprInfo->m_assocCode[index];
+							ExprInfo *exprInfo2 = m_entry[assocCode].exprInfo;
+							if (exprInfo2 != NULL)
+							{
+								bitMask |= bitMaskDataType[exprInfo2
+									->m_operandDataType[exprInfo2->m_nOperands
+									- 1]];
+							}
+						}
+						if (bitMask == Num_BitMask)
+						{
+							exprInfo->m_expectedDataType = Number_DataType;
+						}
+						else if (bitMask == Any_BitMask)
+						{
+							exprInfo->m_expectedDataType = Any_DataType;
+						}
 					}
 				}
 			}