Notably:
* In ApiManageTags, I used a switch instead of a dynamic function name,
so that the call graph will be correct.
* In ApiImageRotate, checkTitleUserPermissions() has always returned
void, this was an error introduced in 4e6810e4a2
Change-Id: Iea22616b8e7e2e0cc804619a54f8690898b2cb82
This brings significant modularization to the Action API's parameter
validation, and allows the Action API and MW REST API to share
validation code.
Note there are several changes in this patch that may affect other code;
see the entries in RELEASE-NOTES-1.35 for details.
Bug: T142080
Bug: T232672
Bug: T21195
Bug: T34675
Bug: T154774
Change-Id: I1462edc1701278760fa695308007006868b249fc
Depends-On: I10011be060fe6d27c7527312ad41218786b3f40d
