Update code to be typescript@next strict-friendly

Author: dfreeman

ts/lib/commands/precompile.ts

@@ -40,7 +40,7 @@ export default command({
         // Capture a string with stdout and stderr interleaved for error reporting
         all: true,
       });
-    } catch (e) {
+    } catch (e: any) {
       fs.removeSync(outDir);
       console.error(`\n${e.all}\n`);
       throw e;

ts/tests/acceptance/build-test.ts

@@ -101,7 +101,7 @@ describe('Acceptance: build', function () {
     try {
       await app.build();
       expect.fail('Build should have failed');
-    } catch (error) {
+    } catch (error: any) {
       expect(error.all).to.include(`Cannot find module 'nonexistent'`);
     }
   });

ts/tests/helpers/skeleton-app.ts

@@ -15,7 +15,7 @@ const getEmberPort = (() => {
 
 interface EmberCliOptions {
   args?: string[];
-  env?: Record<string, string>;
+  env?: Record<string, string> | undefined;
 }
 
 export default class SkeletonApp {
@@ -77,7 +77,7 @@ export default class SkeletonApp {
     process.off('beforeExit', this.cleanupTempDir);
   }
 
-  _ember({ args, env }: EmberCliOptions) {
+  _ember({ args, env = {} }: EmberCliOptions) {
     let ember = require.resolve('ember-cli/bin/ember');
     return execa.node(ember, args, { cwd: this.root, all: true, env });
   }