Added rule to finc plaves where TableName2Id(tableStr(t)) is used

Sample rules/X++/CallsTableName2IdWithTableStr.xq

@@ -0,0 +1,19 @@
+(: Copyright (c) Microsoft Corporation.
+   Licensed under the MIT license. :)
+
+(: Identify calls to tablename2id(TableStr(T)) that could base
+expressed better with tableNum(T), since there is no runtime
+function called in the latter case. :)
+
+(: @Language Xpp :)
+(: @Category Informational :)
+<CallsTableName2IdInTableStr>
+{
+    for $a in /*
+    for $m in $a//Method
+    for $call in $m//FunctionCall[lower-case(@FunctionName)='tablename2id']/Intrinsic[lower-case(@Name)='tablestr']
+    return <Call Artifact='{$a/@Artifact}'
+        StartLine='{$call/@StartLine}' EndLine='{$call/@EndLine}'
+        StartCol='{$call/@StartCol}' EndCol='{$call/@EndCol}'/>
+}
+</CallsTableName2IdInTableStr>