added a tooltip for not checksummed addresses

apps/remix-ide-e2e/src/tests/ballot.test.ts

@@ -51,7 +51,8 @@ module.exports = {
     browser.clickLaunchIcon('udapp')
       .click('*[data-id="universalDappUiUdappClose"]')
       .addFile('ballot.abi', { content: ballotABI })
-      .addAtAddressInstance('0x692a70D2e424a56D2C6C27aA97D1a86395877b3B', true, false)
+      // we are not changing the visibility for not checksumed contracts
+      //.addAtAddressInstance('0x692a70D2e424a56D2C6C27aA97D1a86395877b3B', true, false)
       .clickLaunchIcon('filePanel')
       .addAtAddressInstance('0x692a70D2e424a56D2C6C27aA97D1a86395877b3A', true, true)
       .pause(500)

apps/remix-ide/src/app/tabs/runTab/contractDropdown.js

@@ -9,6 +9,7 @@ const confirmDialog = require('../../ui/confirmDialog')
 const modalDialog = require('../../ui/modaldialog')
 const MultiParamManager = require('../../ui/multiParamManager')
 const helper = require('../../../lib/helper')
+const addTooltip = require('../../ui/tooltip')
 const _paq = window._paq = window._paq || []
 
 class ContractDropdownUI {
@@ -392,11 +393,17 @@ class ContractDropdownUI {
 
     let address = this.atAddressButtonInput.value
     if (!ethJSUtil.isValidChecksumAddress(address)) {
+      addTooltip(yo`
+        <span>
+          It seems you are not using a checksumed address.
+          <br>A checksummed address is an address that contains uppercase letters, as specified in <a href="https://eips.ethereum.org/EIPS/eip-55" target="_blank">EIP-55</a>.
+          <br>Checksummed addresses are meant to help prevent users from sending transactions to the wrong address.
+        </span>`)
       address = ethJSUtil.toChecksumAddress(address)
     }
     this.dropdownLogic.loadContractFromAddress(address,
       (cb) => {
-        modalDialogCustom.confirm(null, 'Do you really want to interact with ' + address + ' using the current ABI definition?', cb)
+        modalDialogCustom.confirm('At Address', `Do you really want to interact with ${address} using the current ABI definition?`, cb)
       },
       (error, loadType, abi) => {
         if (error) {