feat(reflect): add Indirect function

[xgopilot]

Summary

Implements reflect.Indirect function to support pointer dereferencing in llgo's reflect package.

Changes

• Added Indirect function to /workspace/runtime/internal/lib/reflect/value.go
• Created test case in _cmptest/reflect_indirect/test.go

Implementation

func Indirect(v Value) Value {
	if v.Kind() != Pointer {
		return v
	}
	return v.Elem()
}

Behavior

• If v is a pointer (nil or non-nil): returns the dereferenced value via v.Elem()
• If v is not a pointer: returns v unchanged

Testing

The test covers:

1. Non-pointer values (should return unchanged)
2. Pointer values (should dereference)
3. Nil pointer values (should return zero Value)

Expected output:

Non-pointer: 42
Pointer: 42
Nil pointer valid: false

Impact

This change unblocks usage of packages that depend on reflect.Indirect, including:

• encoding/binary
• go/importer
• And other standard library packages

Fixes #1354

🤖 Generated with codeagent

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.18%. Comparing base (d2a2225) to head (a74ca94).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1355   +/-   ##
=======================================
  Coverage   90.18%   90.18%           
=======================================
  Files          43       43           
  Lines       12752    12752           
=======================================
  Hits        11501    11501           
  Misses       1092     1092           
  Partials      159      159           

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[luoliwoshang]

move to _demo folder & with compare test and use panic() for unexpected result @xgopilot

[xgopilot]

✅ Task completed

I've successfully moved the test from _cmptest/reflect_indirect/ to _demo/go/reflect-indirect/ and refactored it to use panic() for validation.

Changes made:

• Created new test at _demo/go/reflect-indirect/reflect-indirect.go
• Replaced fmt.Println statements with proper assertions using panic()
• Added validation that panics when tests fail
• Added println("PASS") at the end to indicate success
• Removed old test directory _cmptest/reflect_indirect/

Test validation:

The refactored test now:

1. Non-pointer test: Validates value is 42, panics if not
2. Pointer test: Validates dereferenced value is 42, panics if not
3. Nil pointer test: Validates result is invalid, panics if valid
4. Prints "PASS" when all assertions succeed

Committed and pushed to branch feature/reflect-indirect.

---

View workflow run | Branch: feature/reflect-indirect

[luoliwoshang]

@xgopilot keep folder name style like other demo folder

[xgopilot]

✅ Task completed

Renamed folder from reflect-indirect to reflectindirect to match the naming convention of other demo folders (e.g., reflectfunc, gotime, timedur).

Changes:

• Renamed: _demo/go/reflect-indirect/ → _demo/go/reflectindirect/

Committed and pushed to branch feature/reflect-indirect.

---

View workflow run | Branch: feature/reflect-indirect

[luoliwoshang]

@xgopilot maybe we also need a struct case

[xgopilot]

✅ Task completed

Added struct test cases to the reflect.Indirect demo as requested.

Changes made:

• Added Test 4: Struct value test - validates that reflect.Indirect returns the same value when given a non-pointer struct
• Added Test 5: Struct pointer test - validates that reflect.Indirect correctly dereferences a pointer to a struct

Test implementation:

Both tests use a Person struct with Name and Age fields and validate using panic() for assertion failures, following the existing pattern.

Committed and pushed to branch feature/reflect-indirect.

---

View workflow run | Branch: feature/reflect-indirect

[luoliwoshang]

@xushiwei need review