diff --git a/packages/babel-helper-transform-fixture-test-runner/src/index.js b/packages/babel-helper-transform-fixture-test-runner/src/index.js
index 2a5c9b6b82..7cef95d789 100644
--- a/packages/babel-helper-transform-fixture-test-runner/src/index.js
+++ b/packages/babel-helper-transform-fixture-test-runner/src/index.js
@@ -124,7 +124,8 @@ export default function (
 
     suite(name + "/" + testSuite.title, function () {
       for (let task of testSuite.tests) {
-        if (_.contains(suiteOpts.ignoreTasks, task.title) || _.contains(suiteOpts.ignoreTasks, testSuite.title + "/" + task.title)) continue;
+        if (_.contains(suiteOpts.ignoreTasks, task.title) ||
+            _.contains(suiteOpts.ignoreTasks, testSuite.title + "/" + task.title)) continue;
 
         test(task.title, !task.disabled && function () {
           function runTask() {
diff --git a/packages/babel-plugin-transform-regenerator/src/emit.js b/packages/babel-plugin-transform-regenerator/src/emit.js
index bf24a6349c..6e1b1b6395 100644
--- a/packages/babel-plugin-transform-regenerator/src/emit.js
+++ b/packages/babel-plugin-transform-regenerator/src/emit.js
@@ -79,8 +79,10 @@ Ep.mark = function(loc) {
 };
 
 Ep.emit = function(node) {
-  if (t.isExpression(node))
+  if (t.isExpression(node)) {
     node = t.expressionStatement(node);
+  }
+
   t.assertStatement(node);
   this.listing.push(node);
 };
@@ -877,6 +879,7 @@ Ep.explodeExpression = function(path, ignoreResult) {
 
   let self = this;
   let result; // Used optionally by several cases below.
+  let after;
 
   function finish(expr) {
     t.assertExpression(expr);
@@ -909,6 +912,8 @@ Ep.explodeExpression = function(path, ignoreResult) {
   // control the precise order in which the generated code realizes the
   // side effects of those subexpressions.
   function explodeViaTempVar(tempVar, childPath, ignoreChildResult) {
+    assert.ok(childPath instanceof traverse.NodePath);
+
     assert.ok(
       !ignoreChildResult || !tempVar,
       "Ignoring the result of a child expression but forcing it to " +
@@ -1016,7 +1021,7 @@ Ep.explodeExpression = function(path, ignoreResult) {
         // will receive the object of the MemberExpression as its `this`
         // object.
         newCallee = t.sequenceExpression([
-          t.numericLiteral(0),
+          t.numbericLiteral(0),
           newCallee
         ]);
       }