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from d3da83f66f1 d: Merge upstream dmd 6d5bffa54 new a4c17870b85 [Ada] Minor wording changes wrt Ada 202x new 6c8e70fe86d [Ada] Rename parameter of routines in Checks new 5620a9cd825 [Ada] Assertion_Policy (Ignore) ignores invariants new efd0843da81 [Ada] Add No_Truncation flag on view conversion for GNAT-LLVM new f191b2c8646 [Ada] AI12-0235 System.Storage_Pools should be pure new 79d09a491c9 [Ada] AI12-0318 No_IO should apply to Ada.Directories new 61fa3fd79ff [Ada] AI12-0237 Getting the representation of an enumeration value new c3c80e3c3ad [Ada] AI12-0144 Make Discrete_Random more flexible new e0fd1b9c9d9 [Ada] Put_Image attribute new bec136971a7 [Ada] Fix assertion failure on double rederivation of private type new 632d4a43d7a [Ada] AI12-0336 Meaning of Time_Offset new a9969d7feb3 [Ada] AI12-0207 Convention of anonymous access types new a8aecf319aa [Ada] Add missing Global contract to Ada.Containers.Functio [...] new 2107ca0242f [Ada] Spurious error on address clause in task body new ca124a62856 [Ada] Add comment about function only used in CodePeer new d1987ffdc27 [Ada] Move routine for detecting special Text_IO packages f [...] new a2754419d08 [Ada] Put_Image attribute: Rtsfind cleanups new c7d193178f7 [Ada] Fix incorrect initialization for array of non-standar [...] new 50554999f23 [Ada] Simplify iteration over components new 2db2527a8dc [Ada] Use Is_Incomplete_Type instead of a low-level Ekind test new c8e89a6de5d [Ada] Spurious assert failure in Walk_Library_Items new f8ca4dd657f [Ada] Optimize Normalize_Pathname new 0ad46f04488 [Ada] Do not create an empty list of nodes that confuses GNATprove new 32115be843e [Ada] Make the Has_Dynamic_Range_Check flag obsolete new bf44027a464 [Ada] Fix punctuation in description of Enum_Rep attribute new faf25008001 [Ada] Subtype inherits Atomic flag from base type new 3af132b801a [Ada] Add note about gnatcov reliance on thunk names new 4ccf713e545 [Ada] Support 'Reduce under -gnatX new f67a6e93a15 [Ada] Update comments wrt Ada 83 handling new 89b49a963c5 [Ada] Replace ? by ?? in Error_Msg_N

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Summary of changes: gcc/ada/atree.adb | 6 + gcc/ada/checks.adb | 270 +++++++++++---------- gcc/ada/checks.ads | 12 +- gcc/ada/cstand.adb | 4 +- .../gnat_rm/implementation_defined_attributes.rst | 2 +- gcc/ada/einfo.adb | 17 +- gcc/ada/einfo.ads | 9 - gcc/ada/exp_aggr.adb | 5 +- gcc/ada/exp_attr.adb | 24 +- gcc/ada/exp_ch11.adb | 4 +- gcc/ada/exp_ch3.adb | 14 +- gcc/ada/exp_disp.adb | 5 + gcc/ada/exp_imgv.adb | 15 +- gcc/ada/exp_tss.ads | 7 +- gcc/ada/exp_util.adb | 14 +- gcc/ada/gnat_rm.texi | 4 +- gcc/ada/libgnat/a-calfor.ads | 8 + gcc/ada/libgnat/a-catizo.adb | 10 +- gcc/ada/libgnat/a-catizo.ads | 8 +- gcc/ada/libgnat/a-cofuve.ads | 3 +- gcc/ada/libgnat/a-nudira.adb | 11 + gcc/ada/libgnat/a-nudira.ads | 6 + gcc/ada/libgnat/s-os_lib.adb | 258 ++++++++++---------- gcc/ada/libgnat/s-stopoo.ads | 7 +- gcc/ada/par-ch3.adb | 2 +- gcc/ada/par-ch4.adb | 8 +- gcc/ada/restrict.ads | 1 + gcc/ada/rtsfind.adb | 156 ++++++++++-- gcc/ada/rtsfind.ads | 101 +------- gcc/ada/scng.adb | 4 +- gcc/ada/sem.adb | 4 +- gcc/ada/sem_aggr.adb | 13 +- gcc/ada/sem_attr.adb | 28 ++- gcc/ada/sem_attr.ads | 37 +-- gcc/ada/sem_ch10.adb | 2 +- gcc/ada/sem_ch12.adb | 10 +- gcc/ada/sem_ch3.adb | 107 +++++--- gcc/ada/sem_ch3.ads | 3 +- gcc/ada/sem_ch8.adb | 2 +- gcc/ada/sem_ch9.adb | 18 ++ gcc/ada/sem_eval.adb | 21 +- gcc/ada/sem_eval.ads | 4 +- gcc/ada/sem_prag.adb | 77 +++--- gcc/ada/sem_util.adb | 141 +++++------ gcc/ada/sem_util.ads | 10 +- gcc/ada/snames.ads-tmpl | 2 +- 46 files changed, 805 insertions(+), 669 deletions(-)