build.zig                                                |   4 +-
 doc/langref.html.in                                      |  50 +++-
 lib/std/zig/Ast.zig                                      |  28 ++
 lib/std/zig/Parse.zig                                    | 350 ++++++++++++++++++-----
 lib/std/zig/parser_test.zig                              |  14 +-
 lib/std/zig/render.zig                                   | 114 +++++---
 src/AstGen.zig                                           | 476 +++++++++++++++++++++++++++++---
 src/AstRlAnnotate.zig                                    |  10 +
 src/Sema.zig                                             | 177 +++++++-----
 src/Zir.zig                                              |  29 ++
 src/print_zir.zig                                        |  23 ++
 stage1/zig1.wasm                                         | Bin 2549064 -> 2569535 bytes
 test/behavior.zig                                        |   1 +
 test/behavior/destructure.zig                            | 100 +++++++
 test/cases/compile_errors/cast_without_result_type.zig   |   7 +
 test/cases/compile_errors/extra_comma_in_destructure.zig |  10 +
 test/cases/compile_errors/invalid_destructure_astgen.zig |  22 ++
 test/cases/compile_errors/invalid_destructure_sema.zig   |  23 ++
 test/cases/unused_vars.zig                               |   3 +
 19 files changed, 1208 insertions(+), 233 deletions(-)