Improve index entries for selectors, events and selfdestruct

Author: cameel

docs/abi-spec.rst

@@ -19,7 +19,7 @@ We assume that all contracts will have the interface definitions of any contract
 This specification does not address contracts whose interface is dynamic or otherwise known only at run-time.
 
 .. _abi_function_selector:
-.. index:: selector
+.. index:: ! selector; of a function
 
 Function Selector
 =================
@@ -503,6 +503,7 @@ efficient search and arbitrary legibility by defining events with two arguments
 indexed, one not — intended to hold the same value.
 
 .. _abi_errors:
+.. index:: error, selector; of an error
 
 Errors
 ======

docs/assembly.rst

@@ -116,7 +116,7 @@ efficient code, for example:
         }
     }
 
-
+.. index:: selector; of a function
 
 Access to External Variables, Functions and Libraries
 -----------------------------------------------------

docs/contracts/errors.rst

@@ -1,4 +1,4 @@
-.. index:: ! error, revert, selector; of an error
+.. index:: ! error, revert, ! selector; of an error
 .. _errors:
 
 *******************************

docs/contracts/events.rst

@@ -1,4 +1,4 @@
-.. index:: ! event
+.. index:: ! event, ! event; anonymous, ! event; indexed, ! event; topic
 
 .. _events:
 
@@ -73,6 +73,8 @@ four indexed arguments rather than three.
     In particular, it is possible to "fake" the signature of another event
     using an anonymous event.
 
+.. index:: ! selector; of an event
+
 Members of Events
 =================
 
@@ -147,7 +149,7 @@ The output of the above looks like the following (trimmed):
     }
 
 Additional Resources for Understanding Events
-==============================================
+=============================================
 
 - `Javascript documentation <https://github.com/ethereum/web3.js/blob/1.x/docs/web3-eth-contract.rst#events>`_
 - `Example usage of events <https://github.com/ethchange/smart-exchange/blob/master/lib/contracts/SmartExchange.sol>`_

docs/contracts/libraries.rst

@@ -215,7 +215,7 @@ In comparison to contracts, libraries are restricted in the following ways:
 (These might be lifted at a later point.)
 
 .. _library-selectors:
-.. index:: selector
+.. index:: ! selector; of a library function
 
 Function Signatures and Selectors in Libraries
 ==============================================

docs/introduction-to-smart-contracts.rst

@@ -548,7 +548,7 @@ these **create calls** and normal message calls is that the payload data is
 executed and the result stored as code and the caller / creator
 receives the address of the new contract on the stack.
 
-.. index:: selfdestruct, self-destruct, deactivate
+.. index:: ! selfdestruct, deactivate
 
 Deactivate and Self-destruct
 ============================