JS: Add getALocalUse to cheat sheet

Author: asgerf

docs/codeql/codeql-language-guides/data-flow-cheat-sheet-for-javascript.rst

@@ -59,6 +59,7 @@ Classes and member predicates in the ``DataFlow::`` module:
     - `getStringValue <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/DataFlow.qll/predicate.DataFlow$DataFlow$Node$getStringValue.0.html>`__ -- value of this node if it's is a string constant
     - `mayHaveBooleanValue <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/DataFlow.qll/predicate.DataFlow$DataFlow$Node$mayHaveBooleanValue.1.html>`__ -- check if the value is ``true`` or ``false``
 - `SourceNode <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/Sources.qll/type.Sources$SourceNode.html>`__ extends `Node <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/DataFlow.qll/type.DataFlow$DataFlow$Node.html>`__ -- function call, parameter, object creation, or reference to a property or global variable
+    - `getALocalUse <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/Sources.qll/predicate.Sources$SourceNode$getALocalUse.0.html>`__ -- find nodes whose value came from this node
     - `getACall <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/Sources.qll/predicate.Sources$SourceNode$getACall.0.html>`__ -- find calls with this as the callee
     - `getAnInstantiation <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/Sources.qll/predicate.Sources$SourceNode$getAnInstantiation.0.html>`__ -- find ``new``-calls with this as the callee
     - `getAnInvocation <https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/dataflow/Sources.qll/predicate.Sources$SourceNode$getAnInvocation.0.html>`__ -- find calls or ``new``-calls with this as the callee