FreeBSD/src b33909d (r256004)cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/funcs tst.strjoin.d, cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pointers err.InvalidAddress4.d err.InvalidAddress3.d

MFC     r249426;

Merge change from illumos:

3519 DTrace fails to resolve const types from fbt
3520 dtrace internal error -- token type 316 is not a valid D
     compilation token
3521 clean up dtrace unit tests

Illumos Revision:       e98f46c

Reference:
https://www.illumos.org/issues/3519
https://www.illumos.org/issues/3520
https://www.illumos.org/issues/3521

Tested by:      Fabian Keil
Obtained from:  Illumos
DeltaFile
+29-0cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/trace/err.D_TRACE_AGG.bad.d
+29-0cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/types/tst.const.d
+29-0cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/print/err.D_PRINT_AGG.bad.d
+7-4cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pointers/err.InvalidAddress4.d
+8-2cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/trace/err.D_PROTO_LEN.bad.d
+8-1cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/funcs/tst.strjoin.d
+8-1cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/trace/err.D_TRACE_VOID.bad.d
+6-1cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/print/err.D_PROTO_LEN.bad.d
+6-1cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/print/err.D_PRINT_VOID.bad.d
+5-2cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pointers/err.InvalidAddress3.d
+5-2cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pointers/err.BadAlign.d
+4-2cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/safety/tst.copyin.d
+6-0cddl/contrib/opensolaris/lib/libdtrace/common/dt_cc.c
+1-5cddl/contrib/opensolaris/lib/libdtrace/common/dt_decl.c
+4-1cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pointers/err.InvalidAddress2.d
+3-1cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/speculation/err.BufSizeVariations2.d
+2-0cddl/contrib/opensolaris/lib/libdtrace/common/dt_errtags.h
+160-2317 files

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