tests/lint: allow empty lines in .exp-ln files

The generated .ln files neither contain spaces nor empty lines. To make
the input more human-readable, allow empty lines in the expected .ln
files.

tests/lint: sort multiple diagnostics per line chronologically

For now, the chronologic order is not enforced but has to be established
manually, for example by removing all 'expect' comment lines and
regenerating them with 'accept.sh -u'.

While here, clean up a few instances that came up when regenerating the
'expect' comments, such as wrong indentation or needless deviation from
the 'expect+1' form.

tests/lint: automate accepting changed test results

tests/lint: only overwrite .exp files if the output actually changes

tests/lint: do not overwrite expected files that only differ in spaces

tests/lint: add quotes around placeholders in a few messages

tests/lint: remove .exp files, as they have become redundant

Now that each lint1 test lists all generated diagnostics as 'expect'
comments, the information from the .exp files is no longer needed. The
only information that gets lost is the order of the diagnostics, which
is mostly relevant for paired messages like 'inconsistent definition' +
'previous definition was here'.

lint: in C99 mode, allow trailing comma in enum declarations

Adjust the test to be run in C90 mode instead of traditional mode, since
traditional C didn't have enums.

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: sort multiple diagnostics per line chronologically

For now, the chronologic order is not enforced but has to be established
manually, for example by removing all 'expect' comment lines and
regenerating them with 'accept.sh -u'.

While here, clean up a few instances that came up when regenerating the
'expect' comments, such as wrong indentation or needless deviation from
the 'expect+1' form.

tests/lint: automate accepting changed test results

tests/lint: only overwrite .exp files if the output actually changes

tests/lint: do not overwrite expected files that only differ in spaces

tests/lint: add quotes around placeholders in a few messages

tests/lint: remove .exp files, as they have become redundant

Now that each lint1 test lists all generated diagnostics as 'expect'
comments, the information from the .exp files is no longer needed. The
only information that gets lost is the order of the diagnostics, which
is mostly relevant for paired messages like 'inconsistent definition' +
'previous definition was here'.

lint: in C99 mode, allow trailing comma in enum declarations

Adjust the test to be run in C90 mode instead of traditional mode, since
traditional C didn't have enums.

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: automate accepting changed test results

tests/lint: only overwrite .exp files if the output actually changes

tests/lint: do not overwrite expected files that only differ in spaces

tests/lint: add quotes around placeholders in a few messages

tests/lint: remove .exp files, as they have become redundant

Now that each lint1 test lists all generated diagnostics as 'expect'
comments, the information from the .exp files is no longer needed. The
only information that gets lost is the order of the diagnostics, which
is mostly relevant for paired messages like 'inconsistent definition' +
'previous definition was here'.

lint: in C99 mode, allow trailing comma in enum declarations

Adjust the test to be run in C90 mode instead of traditional mode, since
traditional C didn't have enums.

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: do not overwrite expected files that only differ in spaces

tests/lint: add quotes around placeholders in a few messages

tests/lint: remove .exp files, as they have become redundant

Now that each lint1 test lists all generated diagnostics as 'expect'
comments, the information from the .exp files is no longer needed. The
only information that gets lost is the order of the diagnostics, which
is mostly relevant for paired messages like 'inconsistent definition' +
'previous definition was here'.

lint: in C99 mode, allow trailing comma in enum declarations

Adjust the test to be run in C90 mode instead of traditional mode, since
traditional C didn't have enums.

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: add quotes around placeholders in a few messages

tests/lint: remove .exp files, as they have become redundant

Now that each lint1 test lists all generated diagnostics as 'expect'
comments, the information from the .exp files is no longer needed. The
only information that gets lost is the order of the diagnostics, which
is mostly relevant for paired messages like 'inconsistent definition' +
'previous definition was here'.

lint: in C99 mode, allow trailing comma in enum declarations

Adjust the test to be run in C90 mode instead of traditional mode, since
traditional C didn't have enums.

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: remove .exp files, as they have become redundant

Now that each lint1 test lists all generated diagnostics as 'expect'
comments, the information from the .exp files is no longer needed. The
only information that gets lost is the order of the diagnostics, which
is mostly relevant for paired messages like 'inconsistent definition' +
'previous definition was here'.

lint: in C99 mode, allow trailing comma in enum declarations

Adjust the test to be run in C90 mode instead of traditional mode, since
traditional C didn't have enums.

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

lint: in C99 mode, allow trailing comma in enum declarations

Adjust the test to be run in C90 mode instead of traditional mode, since
traditional C didn't have enums.

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: add tests for several messages

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: remove unintended debugging output

tests/lint: fix check for expected message in msg tests

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: clean up accept.sh, document test for removed assertion

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output

tests/lint: test emitting 128-bit integer types for lint2

tests/lint: when accepting test results, skip crashes

tests/lint: suppress ShellCheck warnings for intentional violations

The undeclared variables are generated by the AWK program.
The variable 'flags' must be split into words at exactly this point.

tests/lint: add 'make accept' to update the expected output