feature: 🍺 Support for BlockStmt statement

[shivasurya]

Description:

This pull request introduces support for parsing and handling block statements in the code graph. The most important changes include adding a new BlockStmt type, updating the graph construction to recognize block statements, and enhancing the query environment to support this new type.

Addition of Block Statement Support:

• sourcecode-parser/graph/construct.go: Added BlockStmt to the Node struct and updated buildGraphFromAST to handle "block" node types by creating and adding BlockStmt nodes to the graph. [1] [2]

Parsing and Handling Block Statements:

• sourcecode-parser/graph/java/parse_statement.go: Added ParseBlockStatement function to parse block statements from the syntax tree.

Query Environment Enhancements:

• sourcecode-parser/graph/query.go: Added GetBlockStmt method to the Env struct and updated generateProxyEnv to include block statements in the environment map. [1] [2] [3] [4]

Block Statement Model:

• sourcecode-parser/model/stmt.go: Added a new BlockStmt struct and its associated methods to represent block statements in the model.

Checklist:

• Tests passing (gradle testGo)?
• Lint passing (golangci-lint run this requires golangci-lint)?

[codecov]

Codecov Report

Attention: Patch coverage is 83.67347% with 8 lines in your changes missing coverage. Please review.

Project coverage is 72.95%. Comparing base (6d7aed0) to head (0b8bbdf).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sourcecode-parser/graph/query.go	55.55%	4 Missing ⚠️
sourcecode-parser/model/stmt.go	76.47%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #181      +/-   ##
==========================================
+ Coverage   72.73%   72.95%   +0.21%     
==========================================
  Files          16       16              
  Lines        2399     2448      +49     
==========================================
+ Hits         1745     1786      +41     
- Misses        614      622       +8     
  Partials       40       40              

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