Merge branch 'releases/gcc-12' into devel/omp/gcc-12

Merge up to r12-9170-gcb6861acc4074fd2c30a96b52d68c2cd33b9e94d (13th Feb 2023)

diff --cc gcc/c-family/c-gimplify.cc
Simple merge

diff --cc gcc/c/c-parser.cc
Simple merge

diff --cc gcc/cp/cp-tree.h
Simple merge

diff --cc gcc/cp/decl.cc
Simple merge

diff --cc gcc/cp/parser.cc
Simple merge

diff --cc gcc/cp/pt.cc
Simple merge

diff --cc gcc/expr.cc
Simple merge

diff --cc gcc/fortran/f95-lang.cc
Simple merge

diff --cc gcc/fortran/resolve.cc
Simple merge

diff --cc gcc/fortran/trans-decl.cc
Simple merge

diff --cc gcc/testsuite/lib/target-supports.exp
Simple merge

diff --cc gcc/tree.cc
Simple merge

diff --cc gcc/tree.h
Simple merge