Implement Range Checks for Immediate Values in Global Variable Initializers

[Y-Nak]

Currently, the Sonatina-ir parser does not perform range validation on integer Immediate values within global variable initializers. This lack of checking can lead to the assignment of out-of-range integer values, potentially causing unexpected behavior or runtime errors.

Proposed Solution:

• Add Range Validation:
  • Implement checks to ensure that integer Immediate values are within the valid range for their specified integer types.
• Error Handling:
  • Generate informative error messages when an out-of-range value is detected during parsing/ir-building.
• Testing:
  • Create test cases to verify that the parser correctly identifies and handles out-of-range values.