Check org, name for null before package resolution when resolving dependencies in Ballerina.toml

[gayaldassanayake]

Purpose

When there is an invalid entry like,

[[dependency]]
org = "ballerina"
name1 = "data.jsondata"
version = "0.1.0"
repository = "local"

the toml validator adds error diagnostics. However, since we are proceeding to the CompileTask without failing, we get a bad sad error when accessing the name field.

This fix will check if org, name are not null before accessing the dependencies. The version is already validated when casting to SemanticVersion class.

Fixes #42472

Approach

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Samples

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Remarks

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Check List

• Read the Contributing Guide
• Updated Change Log
• Checked Tooling Support (#)
• Added necessary tests
  • Unit Tests
  • Spec Conformance Tests
  • Integration Tests
  • Ballerina By Example Tests
• Increased Test Coverage
• Added necessary documentation
  • API documentation
  • Module documentation in Module.md files
  • Ballerina By Examples