feat: support Node.js v12.x and newer

Remove the `<12.0.0` restriction re: Node.js version in the `"engines"`
settings for all the packages in the monorepo that had that restriction.

Add missing `"engines"` settings in `packages/plugins/snark/package.json`.

Adjust the Azure Pipelines config to include builds for Node.js v12.x and
v13.x.

Bump `solc` to `0.4.26` in `dapps/tests/app` and `dapps/tests/contracts`. It
was discovered that older versions suffered a fatal `Maximum call stack size
exceeded` error when run on Windows with Node.js v12.x or newer. Display a
warning re: the bad combo (solc version + Windows + Node version) if it's
detected at runtime.

Adjust the root `yarn.lock` so that the `sha3` transitive dependency resolves
to a newer version that is compatible with Node v13.x.

Author: michaelsbradleyjr

azure-pipelines.yml

@@ -5,6 +5,8 @@ variables:
   YARN_CACHE_FOLDER: $(Pipeline.Workspace)/.yarn
   ipfsVersion: '0.4.22'
   node10: '^10.17.0'
+  node12: '^12.0.0'
+  node13: '^13.0.0'
   pythonVersion: '2.7.x'
   yarnVersion: '1.19.1'
 
@@ -19,6 +21,24 @@ strategy:
     Node 10 / Windows:
       nodeVersion: $(node10)
       imageName: 'vs2017-win2016'
+    Node 12 / Linux:
+      nodeVersion: $(node12)
+      imageName: 'ubuntu-18.04'
+    Node 12 / macOS:
+      nodeVersion: $(node12)
+      imageName: 'macos-10.14'
+    Node 12 / Windows:
+      nodeVersion: $(node12)
+      imageName: 'vs2017-win2016'
+    Node 13 / Linux:
+      nodeVersion: $(node13)
+      imageName: 'ubuntu-18.04'
+    Node 13 / macOS:
+      nodeVersion: $(node13)
+      imageName: 'macos-10.14'
+    Node 13 / Windows:
+      nodeVersion: $(node13)
+      imageName: 'vs2017-win2016'
 
 pool:
   vmImage: $(imageName)

dapps/tests/app/embark.json

@@ -15,7 +15,7 @@
   "buildDir": "dist/",
   "config": "config/",
   "versions": {
-    "solc": "0.4.25"
+    "solc": "0.4.26"
   },
   "plugins": {
     "embark-dapp-test-service": {}

dapps/tests/contracts/contracts.json

@@ -1,7 +1,7 @@
 {
   "default": {
     "versions": {
-      "solc": "0.4.24"
+      "solc": "0.4.26"
     },
     "dappConnection": [
       "$EMBARK",

dapps/tests/contracts/embark.json

@@ -12,7 +12,7 @@
     "namesystem": "ens.json"
   },
   "versions": {
-    "solc": "0.4.24"
+    "solc": "0.4.26"
   },
   "plugins": {
   }

package.json

@@ -16,7 +16,7 @@
     "semver": "5.6.0"
   },
   "engines": {
-    "node": ">=10.17.0 <12.0.0",
+    "node": ">=10.17.0",
     "npm": ">=6.11.3",
     "yarn": ">=1.19.1"
   },

packages/cockpit/api-client/package.json

@@ -56,7 +56,7 @@
     "rimraf": "3.0.0"
   },
   "engines": {
-    "node": ">=10.17.0 <12.0.0",
+    "node": ">=10.17.0",
     "npm": ">=6.11.3",
     "yarn": ">=1.19.1"
   }

packages/cockpit/ui/package.json

@@ -120,7 +120,7 @@
     ]
   },
   "engines": {
-    "node": ">=10.17.0 <12.0.0",
+    "node": ">=10.17.0",
     "npm": ">=6.11.3",
     "yarn": ">=1.19.1"
   }

packages/core/code-runner/package.json

@@ -74,7 +74,7 @@
     "typescript": "3.7.2"
   },
   "engines": {
-    "node": ">=10.17.0 <12.0.0",
+    "node": ">=10.17.0",
     "npm": ">=6.11.3",
     "yarn": ">=1.19.1"
   },

packages/core/console/package.json

@@ -72,7 +72,7 @@
     "typescript": "3.7.2"
   },
   "engines": {
-    "node": ">=10.17.0 <12.0.0",
+    "node": ">=10.17.0",
     "npm": ">=6.11.3",
     "yarn": ">=1.19.1"
   },

packages/core/core/package.json

@@ -79,7 +79,7 @@
     "typescript": "3.7.2"
   },
   "engines": {
-    "node": ">=10.17.0 <12.0.0",
+    "node": ">=10.17.0",
     "npm": ">=6.11.3",
     "yarn": ">=1.19.1"
   }