test: put stacktrace when test failed

Author: yoshinorin

src/test/runLatestTest.ts

@@ -15,6 +15,7 @@ async function main() {
             launchArgs: ['--disable-extensions']
         });
     } catch (err) {
+        console.log(err);
         console.error('Failed to run tests');
         process.exit(1);
     }

src/test/runLegacyTest.ts

@@ -23,6 +23,7 @@ async function main() {
             launchArgs: ['--disable-extensions']
         });
     } catch (err) {
+        console.log(err);
         console.error('Failed to run tests');
         process.exit(1);
     }

src/test/runMinSupportVersionTest.ts

@@ -18,6 +18,7 @@ async function main() {
             launchArgs: ['--disable-extensions']
         });
     } catch (err) {
+        console.log(err);
         console.error('Failed to run tests');
         process.exit(1);
     }