Add Function Globals Support

[RealA10N]

This PR adds support for @global arguments, and in particular, adds support for global function references that are defined in the same file, to the aarch64 isa.

[codecov]

Codecov Report

Attention: Patch coverage is 25.23810% with 157 lines in your changes missing coverage. Please review.

Project coverage is 42.69%. Comparing base (cd71600) to head (314df4d).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
aarch64/isa/bl.go	4.34%	44 Missing ⚠️
aarch64/translation/arguments.go	0.00%	32 Missing ⚠️
gen/file_generator.go	0.00%	23 Missing ⚠️
gen/function_generator.go	39.39%	17 Missing and 3 partials ⚠️
gen/global_argument_generator.go	16.66%	20 Missing ⚠️
gen/global_argument.go	0.00%	4 Missing ⚠️
gen/global_function_info.go	60.00%	4 Missing ⚠️
gen/function_global_generator.go	82.35%	2 Missing and 1 partial ⚠️
gen/global_map.go	78.57%	2 Missing and 1 partial ⚠️
gen/argument_generator.go	33.33%	2 Missing ⚠️
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #44      +/-   ##
==========================================
- Coverage   42.94%   42.69%   -0.25%     
==========================================
  Files         108      114       +6     
  Lines        4075     4246     +171     
==========================================
+ Hits         1750     1813      +63     
- Misses       2248     2349     +101     
- Partials       77       84       +7     

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[Copilot]

Pull Request Overview

This PR adds support for global function references by introducing an abstraction for globals and integrating it into the generation and translation pipelines for the aarch64 ISA.

• Introduces GlobalManager and GlobalInfo interfaces along with concrete implementations (GlobalMap and FunctionGlobalInfo).
• Updates various generators and the aarch64 instruction definitions to support globals.
• Integrates global argument and function global generators into the file and function generation workflows.

Reviewed Changes

Copilot reviewed 24 out of 26 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
gen/global_map.go	Implements GlobalMap but does not initialize its underlying map.
gen/global_manager.go	Defines GlobalManager interface for global handling.
gen/global_info.go	Introduces GlobalInfo interface for global entities.
gen/global_function_info.go	Provides a function-specific global info implementation.
gen/global_argument_generator.go	Adds global argument support to the argument generation workflow.
gen/global_argument.go	Implements GlobalArgumentInfo for global arguments.
gen/generator.go	Integrates GlobalManager into file generation contexts.
gen/function_info.go	Extends FunctionInfo with a Declaration field for consistency.
gen/function_global_generator.go	Adds generator for function global info objects.
gen/function_generator.go	Updates function generation to retrieve global info using getFunctionInfo.
gen/file_generator.go	Integrates global generation into the file generation process.
gen/argument_info.go	Removes deprecated GetType, streamlining ArgumentInfo.
gen/argument_generator.go	Expands argument generation to include global nodes.
aarch64/translation/arguments.go	Adapts immediate conversion functions to work with the updated globals.
aarch64/managers/instructions.go	Registers the new branch link (bl) instruction.
aarch64/managers/context.go	Updates ManagerCreators to include GlobalManager support.
aarch64/isa/bl.go	Implements the BL instruction using function global information.

Files not reviewed (2)

• examples/aarch64/bl-chain.usm: Language not supported
• examples/aarch64/for-loop.usm: Language not supported