Add internal option to turn off PVCSendWARWA
Adding internal options: `-cl-intel-disable-sendwarwa, -ze-opt-disable-sendwarwa`
to turn off PVCSendWARWA
(cherry picked from commit 8530f90)

 Fix printf uncommon use cases
Fix the following printf use cases:
1. `printf("%s", "");`
2. `printf("%s","foo\0foo")`
(cherry picked from commit fa489af)

 Update condition for spill threshold
(cherry picked from commit b909c5f)

 Bump MINOR to 15
(cherry picked from commit e1fa83a)

[Autobackout][FunctionalRegression]Revert of change: 314d922: Fix GEP…
… lowering overflow issues
This change prevents usage of potentially
    negative values which are then zero-extended to
    64 bits as indexes.
(cherry picked from commit 42d98f4)

 Mask OOB delta for intel sub group shuffle
Changing intel subgroup shuffle extention to behave the same way as
khronos equivalent. When index is OOB only return value is undefined,
not whole behavior
(cherry picked from commit dc7e42c)

 Mask OOB delta for intel sub group shuffle
Changing intel subgroup shuffle extention to behave the same way as
khronos equivalent. When index is OOB only return value is undefined,
not whole behavior
(cherry picked from commit dc7e42c)

 Update condition for spill threshold
(cherry picked from commit b909c5f)

 Remove condition for re-schedule
(cherry picked from commit 90bc16f)

 Initialize members, apply rule-of-three, use std::move
Initialize members to zero-values.
Apply rule-of-three by removing missing copy assignments or destructors.
Use std::move or pass arguments by reference to avoid extensive copying.