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

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make: reduce line length in error messages

The error messages for deeply nested parse errors were hard to decipher,
due to the large amount of text.  Split these messages into individual
lines, just as in the backtrace for .include files and .for loops.  This
unified backtrace makes the output more uniform.

tests/make: clean up tests

Prefer "expect+X" directives to be above the code generating them,
instead of "expect-X" directives below the code.

In varmod-edge.mk, separate the tests, as the common loop does not pull
its weight.

make: in error messages, distinguish parsing from evaluating

make: in error messages for anonymous variables, log the value

make: provide more context information for parse/evaluate errors

tests/make: in 'expect' lines, require the complete text of the line

tests/make: replace 'variable expression' with 'expression'

Each expression is based on a variable, there's no need for the
verbosity.  The wording in make's diagnostics will be changed in a
follow-up commit.

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.

make: add more details to warning 'Extra targets ignored'

Seen in binutils/zlib/Makefile.in:1283, which defines both '.MAKE' and
'.PHONY' in the same line.

tests/make: extend tests for parsing makefiles

make: remove filler word 'Do' from function names for parsing

No functional change, except for debug logging.

make(1): add test for ParseDependencyTargetWord

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

make(1): rename Lst_Init to Lst_New

For the other types such as HashTable and Buffer, the Init function does
not allocate the memory for the structure itself, it only fills it.

make(1): remove redundant variable inLine from parse.c

This variable has served at least 27 years bringing unnecessary
redundancy to the code.  It was already redundant at 1993-03-21, when
the code was imported to NetBSD.

make(1): rename ParseFinishLine to FinishDependencyGroup

Even after 27 or more years, it's not too late to fix bad function
names.  This one for example does not finish a line but a dependency
group.

make(1): in the deptgt test, describe what happens to the targets

make(1): add test for the global variable 'targets' in parse.c

make(1): add test for combining several special targets

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.