Fix 'potentially should be const' for constructors in static analysis

remix-solidity/src/analysis/modules/constantFunctions.js

@@ -34,7 +34,7 @@ function report (contracts, multipleContractsWithSameName) {
 
   contracts.forEach((contract) => {
     contract.functions.forEach((func) => {
-      if (common.isPayableFunction(func.node)) {
+      if (common.isPayableFunction(func.node) || common.isConstructor(func.node)) {
         func.potentiallyshouldBeConst = false
       } else {
         func.potentiallyshouldBeConst = checkIfShouldBeConstant(common.getFullQuallyfiedFuncDefinitionIdent(contract.node, func.node, func.parameters),

remix-solidity/src/analysis/modules/staticAnalysisCommon.js

@@ -521,6 +521,17 @@ function isPayableFunction (node) {
 }
 
 /**
+ * True if is constructor
+ * @node {ASTNode} some AstNode
+ * @return {bool}
+ */
+function isConstructor (node) {
+  return isFunctionDefinition(node) && (
+    node.attributes.isConstructor === true
+  )
+}
+
+/**
  * True if unary increment operation
  * @node {ASTNode} some AstNode
  * @return {bool}
@@ -857,6 +868,7 @@ module.exports = {
   isContractDefinition: isContractDefinition,
   isConstantFunction: isConstantFunction,
   isPayableFunction: isPayableFunction,
+  isConstructor: isConstructor,
   isInlineAssembly: isInlineAssembly,
   isNewExpression: isNewExpression,
   isReturn: isReturn,