Initial class related code

[ice1000]

My proposed design on the concrete:

1. ClazzDecl only has a telescope, it will never have result
2. The telescope's local bindings are copied into a list of MemberVars
3. The resolver should replace the local vars with MemberVars if there exists a corresponding one
4. The tycker should deal with the self invocation

[ice1000]

I expect this to drastically reduce coverage, in the next PR I'll try to add more tests to save some

[codecov]

Codecov Report

Attention: Patch coverage is 55.43478% with 41 lines in your changes missing coverage. Please review.

Project coverage is 78.72%. Comparing base (aabbc82) to head (d4091bb).
Report is 1 commits behind head on main.

Files	Patch %	Lines
...x/src/main/java/org/aya/prettier/CorePrettier.java	27.27%	8 Missing ⚠️
.../java/org/aya/resolve/visitor/StmtPreResolver.java	0.00%	5 Missing ⚠️
...ain/java/org/aya/resolve/visitor/StmtResolver.java	50.00%	5 Missing ⚠️
...c/main/java/org/aya/compiler/ModuleSerializer.java	0.00%	4 Missing ⚠️
base/src/main/java/org/aya/tyck/StmtTycker.java	25.00%	2 Missing and 1 partial ⚠️
...er/src/main/java/org/aya/producer/AyaProducer.java	82.35%	0 Missing and 3 partials ⚠️
...rc/main/java/org/aya/syntax/core/def/ClassDef.java	0.00%	2 Missing ⚠️
...c/main/java/org/aya/syntax/core/def/MemberDef.java	0.00%	2 Missing ⚠️
.../main/java/org/aya/syntax/core/def/TyckAnyDef.java	0.00%	2 Missing ⚠️
...ax/src/main/java/org/aya/syntax/ref/MemberVar.java	66.66%	2 Missing ⚠️
... and 5 more

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1106      +/-   ##
============================================
- Coverage     79.01%   78.72%   -0.29%     
- Complexity     3231     3237       +6     
============================================
  Files           294      298       +4     
  Lines          9828     9887      +59     
  Branches       1168     1172       +4     
============================================
+ Hits           7766     7784      +18     
- Misses         1416     1451      +35     
- Partials        646      652       +6     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.