Phase 7a: bitwise operators & | ^ << >> ~ (retire band/bor/shl/…)

First step of the "stop feeling like C" pass. Bitwise ops were functions
(`band(x, MASK)`, `shl(a, 3)`); they are now real operators:

  band -> &   bor -> |   bxor -> ^   shl -> <<   shr -> >>   bnot -> ~

Precedence is Go-style so the C footgun is gone: `<<`/`>>`/`&` bind like `*`,
`|`/`^` like `+`, both tighter than comparison — `flags & MASK == 0` parses as
`(flags & MASK) == 0`. `>>` is logical (lshr), matching the old `shr`.

Mechanics: lexer tokenizes `<< >> & | ^ ~`; p_mul takes `<< >> &`, p_add takes
`| ^`, p_unary takes `~`; emit_bin routes them through the existing int arith
path (arith_code gains and/or/xor/shl/lshr) and E_UN handles `~`. The six
intrinsics are deleted.

Delivered as two reseeds: (A) add the operators keeping the intrinsics, (B)
migrate every call site to operator form (85 lines across compiler + runtime,
via a balanced-paren call->operator script; two multi-line big-endian reads in
image/truetype done by hand) and delete the intrinsics. Vocabulary drops the six
from LUDIC_INTRINSICS (ludic_syntax.h, grammar, LudicTokens.kt) and the grammar
gains a bitwise-operator rule. LANGUAGE.md precedence table rewritten.

Reseeded (21724 lines); C-free fixpoint holds; goldens byte-identical (the PNG
and TrueType decoders lean on these ops); 17/17; vocab + doc-fences clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tools/editors/jetbrains/src/main/kotlin/io/ludic/ide/LudicTokens.kt

@@ -71,7 +71,7 @@ object LudicVocabulary {
         "poke32", "peekp", "pokep", "peekf", "pokef", "ptr_add", "ptr_null",
         "ptr_is_null", "as_fixed", "as_int", "file_open", "file_read", "file_write",
         "file_seek", "file_tell", "file_close", "read_byte", "write_byte", "print_str",
-        "str_len", "shl", "shr", "band", "bor", "bxor", "bnot", "os_exit", "os_time",
+        "str_len", "os_exit", "os_time",
         "is_windowed", "game_title", "win_open", "win_poll", "win_present",
         "win_running", "win_close"
     )

tools/editors/shared/ludic.tmLanguage.json

@@ -198,7 +198,7 @@
         {
           "comment": "compiler intrinsics — these lower straight to libc or the OS",
           "name": "support.function.intrinsic.ludic",
-          "match": "\\b(mem_alloc|mem_realloc|mem_free|mem_copy|mem_set|peek8|poke8|peek32|poke32|peekp|pokep|peekf|pokef|ptr_add|ptr_null|ptr_is_null|as_fixed|as_int|file_open|file_read|file_write|file_seek|file_tell|file_close|read_byte|write_byte|print_str|str_len|shl|shr|band|bor|bxor|bnot|os_exit|os_time|os_argc|os_arg|file_stderr|is_windowed|game_title|win_open|win_poll|win_present|win_running|win_close)\\b(?=\\s*\\()"
+          "match": "\\b(mem_alloc|mem_realloc|mem_free|mem_copy|mem_set|peek8|poke8|peek32|poke32|peekp|pokep|peekf|pokef|ptr_add|ptr_null|ptr_is_null|as_fixed|as_int|file_open|file_read|file_write|file_seek|file_tell|file_close|read_byte|write_byte|print_str|str_len|os_exit|os_time|os_argc|os_arg|file_stderr|is_windowed|game_title|win_open|win_poll|win_present|win_running|win_close)\\b(?=\\s*\\()"
         }
       ]
     },
@@ -222,6 +222,7 @@
       "patterns": [
         { "name": "keyword.operator.arrow.ludic", "match": "->|=>" },
         { "name": "keyword.operator.range.ludic", "match": "\\.\\." },
+        { "name": "keyword.operator.bitwise.ludic", "match": "<<|>>|&|\\||\\^|~" },
         { "name": "keyword.operator.comparison.ludic", "match": "==|!=|<=|>=|<|>" },
         { "name": "keyword.operator.assignment.ludic", "match": "\\+=|-=|\\*=|/=|=" },
         { "name": "keyword.operator.arithmetic.ludic", "match": "[+\\-*/%]" }

tools/editors/vscode/syntaxes/ludic.tmLanguage.json

@@ -198,7 +198,7 @@
         {
           "comment": "compiler intrinsics — these lower straight to libc or the OS",
           "name": "support.function.intrinsic.ludic",
-          "match": "\\b(mem_alloc|mem_realloc|mem_free|mem_copy|mem_set|peek8|poke8|peek32|poke32|peekp|pokep|peekf|pokef|ptr_add|ptr_null|ptr_is_null|as_fixed|as_int|file_open|file_read|file_write|file_seek|file_tell|file_close|read_byte|write_byte|print_str|str_len|shl|shr|band|bor|bxor|bnot|os_exit|os_time|os_argc|os_arg|file_stderr|is_windowed|game_title|win_open|win_poll|win_present|win_running|win_close)\\b(?=\\s*\\()"
+          "match": "\\b(mem_alloc|mem_realloc|mem_free|mem_copy|mem_set|peek8|poke8|peek32|poke32|peekp|pokep|peekf|pokef|ptr_add|ptr_null|ptr_is_null|as_fixed|as_int|file_open|file_read|file_write|file_seek|file_tell|file_close|read_byte|write_byte|print_str|str_len|os_exit|os_time|os_argc|os_arg|file_stderr|is_windowed|game_title|win_open|win_poll|win_present|win_running|win_close)\\b(?=\\s*\\()"
         }
       ]
     },
@@ -222,6 +222,7 @@
       "patterns": [
         { "name": "keyword.operator.arrow.ludic", "match": "->|=>" },
         { "name": "keyword.operator.range.ludic", "match": "\\.\\." },
+        { "name": "keyword.operator.bitwise.ludic", "match": "<<|>>|&|\\||\\^|~" },
         { "name": "keyword.operator.comparison.ludic", "match": "==|!=|<=|>=|<|>" },
         { "name": "keyword.operator.assignment.ludic", "match": "\\+=|-=|\\*=|/=|=" },
         { "name": "keyword.operator.arithmetic.ludic", "match": "[+\\-*/%]" }

tools/ludic-tools/ludic_syntax.h

@@ -175,12 +175,6 @@ static const LBuiltin LUDIC_INTRINSICS[] = {
  {"write_byte","write_byte(b: int)","Write one byte to stdout."},
  {"print_str","print_str(s: str)","Write a string to stdout."},
  {"str_len","str_len(s: str) -> int","Length of a string in bytes."},
- {"shl","shl(v: int, n: int) -> int","Shift left."},
- {"shr","shr(v: int, n: int) -> int","Logical shift right."},
- {"band","band(a: int, b: int) -> int","Bitwise and."},
- {"bor","bor(a: int, b: int) -> int","Bitwise or."},
- {"bxor","bxor(a: int, b: int) -> int","Bitwise xor."},
- {"bnot","bnot(a: int) -> int","Bitwise not."},
  {"os_exit","os_exit(code: int)","Terminate the process."},
  {"os_time","os_time() -> int","Seconds since the epoch."},
  {"is_windowed","is_windowed() -> bool","True when the build has a window."},