refactor: lsp and resolver code structure and cargo clippy

[Peefy]

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

• N
• Y

• refactor: lsp and resolver code structure and cargo clippy

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

• kclvm/driver/src/lib.rs
• kclvm/sema/src/resolver/mod.rs
• kclvm/sema/src/resolver/scope.rs
• kclvm/tools/src/LSP/src/**.rs

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

• All lsp uni test cases

[coveralls]

Pull Request Test Coverage Report for Build 8230748872

Details

• 710 of 741 (95.82%) changed or added relevant lines in 15 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.02%) to 71.913%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
kclvm/driver/src/lib.rs	20	21	95.24%
kclvm/tools/src/LSP/src/document_symbol.rs	7	8	87.5%
kclvm/tools/src/LSP/src/quick_fix.rs	2	3	66.67%
kclvm/tools/src/LSP/src/state.rs	4	6	66.67%
kclvm/tools/src/LSP/src/word_index.rs	520	528	98.48%
kclvm/tools/src/LSP/src/find_refs.rs	17	26	65.38%
kclvm/tools/src/LSP/src/rename.rs	33	42	78.57%

Files with Coverage Reduction	New Missed Lines	%
kclvm/tools/src/LSP/src/find_refs.rs	1	90.69%
kclvm/sema/src/resolver/mod.rs	1	98.95%

Totals
Change from base Build 8228014003:	-0.02%
Covered Lines:	44688
Relevant Lines:	62142

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💛 - Coveralls