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unknown user pushed a change to branch master in repository gcc.

from f6022d0b2e0 Another fix for single-element permutes (PR 84265) new 54835654b16 libgo: update to Go1.10rc2

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Summary of changes: gcc/go/gofrontend/MERGE | 2 +- libgo/MERGE | 2 +- libgo/VERSION | 2 +- libgo/go/cmd/cgo/doc.go | 16 +- libgo/go/cmd/cgo/gcc.go | 6 - libgo/go/cmd/go/alldocs.go | 31 ++- libgo/go/cmd/go/go_test.go | 245 ++++++++++++++++++++- libgo/go/cmd/go/internal/cache/default.go | 8 +- libgo/go/cmd/go/internal/envcmd/env.go | 7 +- libgo/go/cmd/go/internal/help/helpdoc.go | 31 ++- libgo/go/cmd/go/internal/load/pkg.go | 104 +++++++-- libgo/go/cmd/go/internal/test/test.go | 18 +- libgo/go/cmd/go/internal/work/exec.go | 90 ++++++-- libgo/go/cmd/go/internal/work/security.go | 160 ++++++++++++++ libgo/go/cmd/go/internal/work/security_test.go | 240 ++++++++++++++++++++ libgo/go/database/sql/driver/driver.go | 4 + libgo/go/database/sql/fakedb_test.go | 5 - libgo/go/database/sql/sql_test.go | 40 +--- libgo/go/go/build/deps_test.go | 2 +- .../gccgoimporter/gccgoinstallation_test.go | 4 - libgo/go/net/sock_bsd.go | 2 +- libgo/go/os/exec.go | 5 + libgo/go/os/exec/exec.go | 5 + libgo/go/os/signal/internal/pty/pty.go | 20 +- libgo/go/os/signal/signal_cgo_test.go | 4 + libgo/go/runtime/crash_cgo_test.go | 21 ++ libgo/go/runtime/testdata/testprogcgo/sigpanic.go | 28 +++ libgo/go/text/template/doc.go | 6 - libgo/go/text/template/exec.go | 84 ++----- libgo/go/text/template/exec_test.go | 4 - libgo/go/text/template/parse/lex.go | 4 - libgo/go/text/template/parse/lex_test.go | 6 +- libgo/go/text/template/parse/node.go | 64 ------ libgo/go/text/template/parse/parse.go | 44 +--- libgo/go/text/template/parse/parse_test.go | 12 - libgo/misc/cgo/errors/src/err1.go | 2 +- libgo/misc/cgo/test/issue19832.go | 16 -- libgo/misc/cgo/test/issue4029.c | 19 ++ libgo/misc/cgo/test/issue4029.go | 17 +- 39 files changed, 1035 insertions(+), 345 deletions(-) create mode 100644 libgo/go/cmd/go/internal/work/security.go create mode 100644 libgo/go/cmd/go/internal/work/security_test.go create mode 100644 libgo/go/runtime/testdata/testprogcgo/sigpanic.go delete mode 100644 libgo/misc/cgo/test/issue19832.go