Expand BytecodeTest.methodExists to detect change of method modifier

[AlexeyBarabash]

The changes in upstream like
https://source.chromium.org/chromium/chromium/src/+/618819a4be308d02459fb6b06df5a00515b5ee26
which caused HomepageManager.shouldCloseAppWithZeroTabs become non-static - are not detected by our BytecodeTest . But this needs an update of patching, because otherwise the crash will happen, as example:

05-11 07:57:49.875  9753  9753 E AndroidRuntime: FATAL EXCEPTION: main
05-11 07:57:49.875  9753  9753 E AndroidRuntime: Process: org.chromium.android_browsertests_apk:test_process, PID: 9753
05-11 07:57:49.875  9753  9753 E AndroidRuntime: java.lang.VerifyError: Verifier rejected class org.chromium.chrome.browser.multiwindow.MultiWindowUtils: boolean org.chromium.chrome.browser.multiwindow.MultiWindowUtils.hasAtMostOneTabWithHomepageEnabled(org.chromium.chrome.browser.tabmodel.TabModelSelector) failed to verify: 
boolean org.chromium.chrome.browser.multiwindow.MultiWindowUtils.hasAtMostOneTabWithHomepageEnabled(org.chromium.chrome.browser.tabmodel.TabModelSelector): 
[0xF] 'this' argument 'Reference: org.chromium.chrome.browser.homepage.HomepageManager' not instance of 
'Reference: org.chromium.chrome.browser.homepage.BraveHomepageManager' 
(declaration of 'org.chromium.chrome.browser.multiwindow.MultiWindowUtils' appears in 
/data/app/~~XpvqnEAgrvdvUZjKOVXV1Q==/org.chromium.android_browsertests_apk-VTozqjmUedcNagsBiurH3w==/base.apk!classes5.dex)
05-11 07:57:49.875  9753  9753 E AndroidRuntime:        at org.chromium.chrome.browser.multiwindow.MultiWindowUtils.isMultiInstanceApi31Enabled(MultiWindowUtils.java:156)
05-11 07:57:49.875  9753  9753 E AndroidRuntime:        at org.chromium.chrome.browser.multiwindow.MultiInstanceManager.create(MultiInstanceManager.java:127)
05-11 07:57:49.875  9753  9753 E AndroidRuntime:        at org.chromium.chrome.browser.ChromeTabbedActivity.onPreCreate(ChromeTabbedActivity.java:560)
05-11 07:57:49.875  9753  9753 E AndroidRuntime:        at org.chromium.chrome.browser.init.AsyncInitializationActivity.onCreate(AsyncInitializationActivity.java:309)

Need to implement detection of modifier change at BytecodeTest