Shorthand register access via '$'

[f1ammable]

just like gdb/lldb wow!

[github-actions]

Code Coverage Report

### Per-File Coverage Summary
Filename                      Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
cmd/callable.hpp                   17                 4    76.47%           5                 0   100.00%          22                 1    95.45%           8                 5    37.50%
cmd/environment.cpp                26                 5    80.77%           6                 1    83.33%          55                13    76.36%          14                 3    78.57%
cmd/environment.hpp                 2                 0   100.00%           1                 0   100.00%           9                 0   100.00%           0                 0         -
cmd/expr.hpp                       38                 3    92.11%          25                 3    88.00%          64                 7    89.06%           2                 0   100.00%
cmd/interpreter.cpp                57                 2    96.49%          18                 0   100.00%         148                 5    96.62%          48                 4    91.67%
cmd/object.hpp                     25                 1    96.00%          17                 1    94.12%         120                 2    98.33%           2                 0   100.00%
cmd/parser.cpp                    102                 2    98.04%          21                 0   100.00%         144                 0   100.00%          62                 6    90.32%
cmd/parser.hpp                     19                 0   100.00%           1                 0   100.00%           3                 0   100.00%          16                 0   100.00%
cmd/scanner.cpp                    88                 3    96.59%          12                 0   100.00%         133                 9    93.23%          76                 6    92.11%
cmd/scanner.hpp                     1                 0   100.00%           1                 0   100.00%           4                 0   100.00%           0                 0         -
cmd/stdlib.hpp                    126                98    22.22%          32                16    50.00%         212               144    32.08%          68                57    16.18%
cmd/stmnt.hpp                      13                 1    92.31%           8                 1    87.50%          14                 1    92.86%           0                 0         -
cmd/subcommand.hpp                  7                 0   100.00%           2                 0   100.00%          10                 0   100.00%           2                 0   100.00%
cmd/token.hpp                       4                 0   100.00%           1                 0   100.00%           3                 0   100.00%           0                 0         -
cmd/util.cpp                       32                22    31.25%           4                 3    25.00%          54                39    27.78%          28                24    14.29%
cmd/util.hpp                       18                18     0.00%           2                 2     0.00%          22                22     0.00%          10                10     0.00%
core/context.hpp                    3                 2    33.33%           3                 2    33.33%           8                 7    12.50%           0                 0         -
core/macho/macho.hpp                2                 2     0.00%           2                 2     0.00%           2                 2     0.00%           0                 0         -
core/platform.hpp                  16                15     6.25%           7                 6    14.29%          51                48     5.88%          11                11     0.00%
core/target.cpp                    23                23     0.00%           6                 6     0.00%          59                59     0.00%          12                12     0.00%
core/target.hpp                     5                 5     0.00%           5                 5     0.00%           5                 5     0.00%           0                 0         -
core/util.hpp                       7                 7     0.00%           7                 7     0.00%         104               104     0.00%           0                 0         -
error.cpp                           6                 3    50.00%           6                 3    50.00%          24                12    50.00%           0                 0         -
error.hpp                           8                 0   100.00%           2                 0   100.00%          21                 0   100.00%           0                 0         -
expected.hpp                       13                13     0.00%           9                 9     0.00%           9                 9     0.00%           0                 0         -
formatter.hpp                      58                 0   100.00%           9                 0   100.00%          99                 2    97.98%           2                 0   100.00%
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                             716               229    68.02%         212                67    68.40%        1399               491    64.90%         361               138    61.77%

Detailed HTML report available in artifacts.

[github-actions]

Code Coverage Report

### Per-File Coverage Summary
Filename                      Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
cmd/callable.hpp                   17                 4    76.47%           5                 0   100.00%          22                 1    95.45%           8                 5    37.50%
cmd/environment.cpp                26                 5    80.77%           6                 1    83.33%          55                13    76.36%          14                 3    78.57%
cmd/environment.hpp                 2                 0   100.00%           1                 0   100.00%           9                 0   100.00%           0                 0         -
cmd/expr.hpp                       38                 3    92.11%          25                 3    88.00%          64                 7    89.06%           2                 0   100.00%
cmd/interpreter.cpp                57                 2    96.49%          18                 0   100.00%         148                 5    96.62%          48                 4    91.67%
cmd/object.hpp                     25                 1    96.00%          17                 1    94.12%         120                 2    98.33%           2                 0   100.00%
cmd/parser.cpp                    102                 2    98.04%          21                 0   100.00%         144                 0   100.00%          62                 6    90.32%
cmd/parser.hpp                     19                 0   100.00%           1                 0   100.00%           3                 0   100.00%          16                 0   100.00%
cmd/scanner.cpp                    88                 3    96.59%          12                 0   100.00%         133                 9    93.23%          76                 6    92.11%
cmd/scanner.hpp                     1                 0   100.00%           1                 0   100.00%           4                 0   100.00%           0                 0         -
cmd/stdlib.hpp                    126                98    22.22%          32                16    50.00%         212               144    32.08%          68                57    16.18%
cmd/stmnt.hpp                      13                 1    92.31%           8                 1    87.50%          14                 1    92.86%           0                 0         -
cmd/subcommand.hpp                  7                 0   100.00%           2                 0   100.00%          10                 0   100.00%           2                 0   100.00%
cmd/token.hpp                       4                 0   100.00%           1                 0   100.00%           3                 0   100.00%           0                 0         -
cmd/util.cpp                       32                22    31.25%           4                 3    25.00%          54                39    27.78%          28                24    14.29%
cmd/util.hpp                       18                18     0.00%           2                 2     0.00%          22                22     0.00%          10                10     0.00%
core/context.hpp                    3                 2    33.33%           3                 2    33.33%           8                 7    12.50%           0                 0         -
core/macho/macho.hpp                2                 2     0.00%           2                 2     0.00%           2                 2     0.00%           0                 0         -
core/platform.hpp                  16                15     6.25%           7                 6    14.29%          51                48     5.88%          11                11     0.00%
core/target.cpp                    23                23     0.00%           6                 6     0.00%          59                59     0.00%          12                12     0.00%
core/target.hpp                     5                 5     0.00%           5                 5     0.00%           5                 5     0.00%           0                 0         -
core/util.hpp                       7                 7     0.00%           7                 7     0.00%         104               104     0.00%           0                 0         -
error.cpp                           6                 3    50.00%           6                 3    50.00%          24                12    50.00%           0                 0         -
error.hpp                           8                 0   100.00%           2                 0   100.00%          21                 0   100.00%           0                 0         -
expected.hpp                       13                13     0.00%           9                 9     0.00%           9                 9     0.00%           0                 0         -
formatter.hpp                      58                 0   100.00%           9                 0   100.00%          99                 2    97.98%           2                 0   100.00%
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                             716               229    68.02%         212                67    68.40%        1399               491    64.90%         361               138    61.77%

Detailed HTML report available in artifacts.