CVS log for src/usr.bin/make/unit-tests/directive-info.mk

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tests/make: force line-based diagnostics to be listed in the tests

This way, contradictions between the intended output and the actual
output are closer together and have a better chance of being spotted.

tests/make: migrate cond1 test to other, more specific tests

The tests in cond1 were a mixture of "everything related to conditions",
and the test cases were heavily dependent on each other, which made them
hard to understand.  Move each test case to its corresponding
special-purpose test.

make: fix reported line numbers of continuation lines (since 2002)

Previously, multi-line directives like '.info' or '.error' reported the
line number of their last line instead of their first line, which is
more usual.  This also affected the debug log from '-dp'.

make(1): fix error message for .info/.warning/.error without argument

Previously, the error message was "Unknown directive", which was
obviously wrong.  The new error message is "Missing argument".

make(1): add test for backslash continuation lines in .for loops

This ensures that the line numbers for messages are the expected onces
in .for loops.

While experimenting with the backslash continuation lines, I noticed
that the reported line numbers for these are based on the number of
completely parsed physical lines, which nicely cancels out the + 1 that
has to be added for producing human-readable 1-based line numbers.  It
would be more correct to report the parse errors on the first affected
line.

make(1): adjust timestamps in unit tests

These could not be known before the previous commit.

make(1): error out on misspelled directives

Before, make accepted misspellings like .warnings, .export-literally and
a few others, all of which are unlikely to occur in practice.  See the
test directive-misspellings.mk for further details.

make(1): add tests for edge cases when parsing directives

make(1): move tests from directives.mk to separate tests

make(1): describe the purpose of each newly added unit test dummy

make(1): add dummies for fine-grained tests, one per single feature

The test names have been derived from the current manual page.

All these tests are dummies right now, and the code from the existing
tests will be moved into the new tests step by step.

This is done to prevent modmisc, escape, varmod-edge and varmisc from
growing without any bounds, and to reduce the side-effects of one test
to the others.