When mrbc compiles multiple input files (e.g. `mrbc -g -o out.mrb
a.rb b.rb`), the bison parser's one-token lookahead can buffer the
final token of one file before partial_hook switches to the next.
By the time bison reduces that token into an AST node,
`mrb_parser_set_filename` has already reset `p->lineno` to 0, so
init_var_header recorded lineno=0 for the previous file's last
statement and codegen propagated the previous instruction's line.
Save the lineno into `prev_file_lineno` immediately before the
reset so init_var_header can restore the correct value when it
detects the lookahead edge case (lineno==0 && filename_index>0).
close#1316
Co-authored-by: Claude <noreply@anthropic.com>
This adds a build_config that will cross-build a Windows executable
using the MinGW cross-compiler and will also run the unit (i.e.
'rake test') using Wine.
For this to work, I made some modifications to the underlying test
scripts as well as some minor changes to a couple of the tests
themselves.
Yukihiro "Matz" Matsumoto