Merge pull request #5172 from ethereum/fixKind

Fix kind

docs/050-breaking-changes.rst

@@ -154,6 +154,10 @@ Command Line and JSON Interfaces
 * The JSON AST fields ``constant`` and ``payable`` were removed. The
   information is now present in the ``stateMutability`` field.
 
+* The JSON AST field ``isConstructor`` of the ``FunctionDefinition``
+  node was replaced by a field called ``kind`` which can have the
+  value ``"constructor"``, ``"fallback"`` or ``"function"``.
+
 Constructors
 ------------
 

test/libsolidity/ASTJSON/address_payable.json

@@ -463,7 +463,7 @@
 					"documentation" : null,
 					"id" : 36,
 					"implemented" : true,
-					"isConstructor" : false,
+					"kind" : "function",
 					"modifiers" : [],
 					"name" : "f",
 					"nodeType" : "FunctionDefinition",

test/libsolidity/ASTJSON/address_payable_legacy.json

@@ -93,6 +93,7 @@
 						"documentation" : null,
 						"implemented" : true,
 						"isConstructor" : false,
+						"kind" : "function",
 						"modifiers" : 
 						[
 							null