fix net to_ip4 and to_ip6

[liangyuanpeng]

releated:

• net.to_IP16 is nonsensical #1904

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

2. What is the scope of this PR (e.g. component or file name):

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

[coveralls]

Pull Request Test Coverage Report for Build 15292125470

Details

• 61 of 103 (59.22%) changed or added relevant lines in 1 file are covered.
• 31 unchanged lines in 4 files lost coverage.
• Overall coverage decreased (-0.05%) to 70.64%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
kclvm/runtime/src/net/mod.rs	61	103	59.22%

Files with Coverage Reduction	New Missed Lines	%
kclvm/sema/src/advanced_resolver/node.rs	1	84.97%
kclvm/runtime/src/net/mod.rs	2	66.47%
kclvm/tools/src/LSP/src/util.rs	11	35.0%
kclvm/tools/src/LSP/src/state.rs	17	71.55%

Totals
Change from base Build 14941299851:	-0.05%
Covered Lines:	53930
Relevant Lines:	76345

---

💛 - Coveralls

[Peefy]

LGTM!